diff --git a/lib/mobilizon/activity.ex b/lib/mobilizon/activity.ex
deleted file mode 100644
index 2bcdc4fed..000000000
--- a/lib/mobilizon/activity.ex
+++ /dev/null
@@ -1,7 +0,0 @@
-defmodule Mobilizon.Activity do
-  @moduledoc """
-  Represents an activity
-  """
-
-  defstruct [:data, :local, :actor, :recipients, :notifications]
-end
diff --git a/lib/mobilizon/events/activity.ex b/lib/mobilizon/events/activity.ex
new file mode 100644
index 000000000..7daf805e7
--- /dev/null
+++ b/lib/mobilizon/events/activity.ex
@@ -0,0 +1,13 @@
+defmodule Mobilizon.Events.Activity do
+  @moduledoc """
+  Represents an activity.
+  """
+
+  defstruct [
+    :data,
+    :local,
+    :actor,
+    :recipients,
+    :notifications
+  ]
+end
diff --git a/lib/mobilizon/events/events.ex b/lib/mobilizon/events/events.ex
index 29f483aae..24c93fa5e 100644
--- a/lib/mobilizon/events/events.ex
+++ b/lib/mobilizon/events/events.ex
@@ -587,8 +587,6 @@ defmodule Mobilizon.Events do
 
   def get_tag(id), do: Repo.get(Tag, id)
 
-
-
   def get_tag_by_slug(slug) do
     query =
       from(
@@ -760,9 +758,6 @@ defmodule Mobilizon.Events do
     Repo.all(final_query)
   end
 
-
-
-
   alias Mobilizon.Events.Participant
 
   @doc """
diff --git a/lib/mobilizon_web/api/reports.ex b/lib/mobilizon_web/api/reports.ex
index 815471acd..171e70b04 100644
--- a/lib/mobilizon_web/api/reports.ex
+++ b/lib/mobilizon_web/api/reports.ex
@@ -3,17 +3,18 @@ defmodule MobilizonWeb.API.Reports do
   API for Reports
   """
 
+  import MobilizonWeb.API.Utils
+  import Mobilizon.Service.Admin.ActionLogService
+
   alias Mobilizon.Actors
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Events
-  alias Mobilizon.Activity
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Reports, as: ReportsAction
   alias Mobilizon.Reports.{Report, Note}
   alias Mobilizon.Service.ActivityPub
   alias Mobilizon.Users
   alias Mobilizon.Users.User
-  import MobilizonWeb.API.Utils
-  import Mobilizon.Service.Admin.ActionLogService
 
   @doc """
   Create a report/flag on an actor, and optionally on an event or on comments.
diff --git a/lib/mobilizon_web/resolvers/comment.ex b/lib/mobilizon_web/resolvers/comment.ex
index c167b898f..cbe0b248b 100644
--- a/lib/mobilizon_web/resolvers/comment.ex
+++ b/lib/mobilizon_web/resolvers/comment.ex
@@ -2,12 +2,14 @@ defmodule MobilizonWeb.Resolvers.Comment do
   @moduledoc """
   Handles the comment-related GraphQL calls
   """
-  require Logger
-  alias Mobilizon.Events.Comment
-  alias Mobilizon.Activity
+
+  alias Mobilizon.Events.{Activity, Comment}
   alias Mobilizon.Users.User
+
   alias MobilizonWeb.API.Comments
 
+  require Logger
+
   def create_comment(_parent, %{text: comment, actor_username: username}, %{
         context: %{current_user: %User{} = _user}
       }) do
diff --git a/lib/mobilizon_web/resolvers/event.ex b/lib/mobilizon_web/resolvers/event.ex
index 339bbdcba..370b507a2 100644
--- a/lib/mobilizon_web/resolvers/event.ex
+++ b/lib/mobilizon_web/resolvers/event.ex
@@ -2,12 +2,11 @@ defmodule MobilizonWeb.Resolvers.Event do
   @moduledoc """
   Handles the event-related GraphQL calls
   """
-  alias Mobilizon.Activity
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Addresses
   alias Mobilizon.Addresses.Address
   alias Mobilizon.Events
-  alias Mobilizon.Events.{Event, Participant}
+  alias Mobilizon.Events.{Activity, Event, Participant}
   alias Mobilizon.Media.Picture
   alias Mobilizon.Users.User
   alias MobilizonWeb.Resolvers.Person
diff --git a/lib/mobilizon_web/resolvers/group.ex b/lib/mobilizon_web/resolvers/group.ex
index 5aa35e861..e9422bb50 100644
--- a/lib/mobilizon_web/resolvers/group.ex
+++ b/lib/mobilizon_web/resolvers/group.ex
@@ -4,10 +4,12 @@ defmodule MobilizonWeb.Resolvers.Group do
   """
   alias Mobilizon.Actors
   alias Mobilizon.Actors.{Actor, Member}
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Users.User
   alias Mobilizon.Service.ActivityPub
-  alias Mobilizon.Activity
+
   alias MobilizonWeb.Resolvers.Person
+
   require Logger
 
   @doc """
diff --git a/lib/mobilizon_web/views/activity_pub/actor_view.ex b/lib/mobilizon_web/views/activity_pub/actor_view.ex
index 5ecf495c7..c1679bb53 100644
--- a/lib/mobilizon_web/views/activity_pub/actor_view.ex
+++ b/lib/mobilizon_web/views/activity_pub/actor_view.ex
@@ -3,9 +3,9 @@ defmodule MobilizonWeb.ActivityPub.ActorView do
 
   alias Mobilizon.Actors
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Service.ActivityPub
   alias Mobilizon.Service.ActivityPub.Utils
-  alias Mobilizon.Activity
 
   @private_visibility_empty_collection %{elements: [], total: 0}
 
diff --git a/lib/mobilizon_web/views/activity_pub/object_view.ex b/lib/mobilizon_web/views/activity_pub/object_view.ex
index 9a1da8fca..576b9e751 100644
--- a/lib/mobilizon_web/views/activity_pub/object_view.ex
+++ b/lib/mobilizon_web/views/activity_pub/object_view.ex
@@ -1,7 +1,8 @@
 defmodule MobilizonWeb.ActivityPub.ObjectView do
   use MobilizonWeb, :view
+
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Service.ActivityPub.Utils
-  alias Mobilizon.Activity
 
   def render("activity.json", %{activity: %Activity{local: local, data: data} = activity}) do
     %{
diff --git a/lib/service/activity_pub/activity_pub.ex b/lib/service/activity_pub/activity_pub.ex
index 7818cbfd8..68e23ec59 100644
--- a/lib/service/activity_pub/activity_pub.ex
+++ b/lib/service/activity_pub/activity_pub.ex
@@ -12,10 +12,9 @@ defmodule Mobilizon.Service.ActivityPub do
 
   alias Mobilizon.Config
   alias Mobilizon.Events
-  alias Mobilizon.Events.{Event, Comment, Participant}
+  alias Mobilizon.Events.{Activity, Event, Comment, Participant}
   alias Mobilizon.Service.ActivityPub.Transmogrifier
   alias Mobilizon.Service.WebFinger
-  alias Mobilizon.Activity
 
   alias Mobilizon.Actors
   alias Mobilizon.Actors.{Actor, Follower}
diff --git a/lib/service/activity_pub/relay.ex b/lib/service/activity_pub/relay.ex
index 3333be71b..ef44fbbea 100644
--- a/lib/service/activity_pub/relay.ex
+++ b/lib/service/activity_pub/relay.ex
@@ -8,11 +8,13 @@ defmodule Mobilizon.Service.ActivityPub.Relay do
   Handles following and unfollowing relays and instances
   """
 
-  alias Mobilizon.Activity
   alias Mobilizon.Actors
   alias Mobilizon.Actors.Actor
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Service.ActivityPub
+
   alias MobilizonWeb.API.Follows
+
   require Logger
 
   def get_actor do
diff --git a/lib/service/activity_pub/utils.ex b/lib/service/activity_pub/utils.ex
index db8757bb6..ff7655231 100644
--- a/lib/service/activity_pub/utils.ex
+++ b/lib/service/activity_pub/utils.ex
@@ -10,25 +10,26 @@ defmodule Mobilizon.Service.ActivityPub.Utils do
   Various utils
   """
 
-  alias Mobilizon.Storage.Repo
+  alias Ecto.Changeset
+
   alias Mobilizon.Addresses
   alias Mobilizon.Addresses.Address
   alias Mobilizon.Actors
   alias Mobilizon.Actors.Actor
-  alias Mobilizon.Events.Event
-  alias Mobilizon.Events.Comment
-  alias Mobilizon.Media.Picture
   alias Mobilizon.Events
-  alias Mobilizon.Activity
+  alias Mobilizon.Events.{Activity, Comment, Event}
+  alias Mobilizon.Media.Picture
   alias Mobilizon.Reports
   alias Mobilizon.Reports.Report
-  alias Mobilizon.Users
   alias Mobilizon.Service.ActivityPub.Converters
-  alias Ecto.Changeset
-  require Logger
+  alias Mobilizon.Storage.Repo
+  alias Mobilizon.Users
+
   alias MobilizonWeb.Router.Helpers, as: Routes
   alias MobilizonWeb.Endpoint
 
+  require Logger
+
   @actor_types ["Group", "Person", "Application"]
 
   # Some implementations send the actor URI as the actor field, others send the entire actor object,
diff --git a/lib/service/activity_pub/visibility.ex b/lib/service/activity_pub/visibility.ex
index 93a5c5aba..756965910 100644
--- a/lib/service/activity_pub/visibility.ex
+++ b/lib/service/activity_pub/visibility.ex
@@ -7,7 +7,8 @@ defmodule Mobilizon.Service.ActivityPub.Visibility do
   @moduledoc """
   Utility functions related to content visibility
   """
-  alias Mobilizon.Activity
+
+  alias Mobilizon.Events.Activity
 
   @public "https://www.w3.org/ns/activitystreams#Public"
 
diff --git a/lib/service/federator.ex b/lib/service/federator.ex
index 5e19e8a4c..4d8b99cd0 100644
--- a/lib/service/federator.ex
+++ b/lib/service/federator.ex
@@ -9,10 +9,12 @@ defmodule Mobilizon.Service.Federator do
   """
 
   use GenServer
+
   alias Mobilizon.Actors
-  alias Mobilizon.Activity
+  alias Mobilizon.Events.Activity
   alias Mobilizon.Service.ActivityPub
   alias Mobilizon.Service.ActivityPub.Transmogrifier
+
   require Logger
 
   @max_jobs 20
diff --git a/mix.exs b/mix.exs
index 67ad05c5f..9386944c1 100644
--- a/mix.exs
+++ b/mix.exs
@@ -197,6 +197,7 @@ defmodule Mobilizon.Mixfile do
         Mobilizon.Addresses,
         Mobilizon.Addresses.Address,
         Mobilizon.Events,
+        Mobilizon.Events.Activity,
         Mobilizon.Events.Event,
         Mobilizon.Events.Comment,
         Mobilizon.Events.FeedToken,
@@ -218,7 +219,6 @@ defmodule Mobilizon.Mixfile do
         Mobilizon.Users.User,
         Mobilizon.Users.UserRole,
         Mobilizon.Users.Guards,
-        Mobilizon.Activity,
         Mobilizon.Storage.Ecto,
         Mobilizon.Storage.Repo
       ],
diff --git a/test/mobilizon/service/activity_pub/transmogrifier_test.exs b/test/mobilizon/service/activity_pub/transmogrifier_test.exs
index 7eb340ae4..91ec98007 100644
--- a/test/mobilizon/service/activity_pub/transmogrifier_test.exs
+++ b/test/mobilizon/service/activity_pub/transmogrifier_test.exs
@@ -8,11 +8,10 @@ defmodule Mobilizon.Service.ActivityPub.TransmogrifierTest do
 
   import Mobilizon.Factory
 
-  alias Mobilizon.Activity
   alias Mobilizon.Actors
   alias Mobilizon.Actors.Actor
   alias Mobilizon.Events
-  alias Mobilizon.Events.{Comment, Event, Participant}
+  alias Mobilizon.Events.{Activity, Comment, Event, Participant}
   alias Mobilizon.Service.ActivityPub
   alias Mobilizon.Service.ActivityPub.Utils
   alias Mobilizon.Service.ActivityPub.Transmogrifier
@@ -26,7 +25,7 @@ defmodule Mobilizon.Service.ActivityPub.TransmogrifierTest do
     test "it works for incoming events" do
       data = File.read!("test/fixtures/mobilizon-post-activity.json") |> Jason.decode!()
 
-      {:ok, %Mobilizon.Activity{data: data, local: false}, %Event{} = event} =
+      {:ok, %Activity{data: data, local: false}, %Event{} = event} =
         Transmogrifier.handle_incoming(data)
 
       assert data["id"] ==
@@ -116,7 +115,7 @@ defmodule Mobilizon.Service.ActivityPub.TransmogrifierTest do
     test "it works for incoming notices" do
       data = File.read!("test/fixtures/mastodon-post-activity.json") |> Jason.decode!()
 
-      {:ok, %Mobilizon.Activity{data: data, local: false}, _} =
+      {:ok, %Activity{data: data, local: false}, _} =
         Transmogrifier.handle_incoming(data)
 
       assert data["id"] == "https://framapiaf.org/users/admin/statuses/99512778738411822/activity"
diff --git a/test/mobilizon_web/api/report_test.exs b/test/mobilizon_web/api/report_test.exs
index fa547024b..de6df7f7e 100644
--- a/test/mobilizon_web/api/report_test.exs
+++ b/test/mobilizon_web/api/report_test.exs
@@ -1,17 +1,16 @@
 defmodule MobilizonWeb.API.ReportTest do
   use Mobilizon.DataCase
 
-  alias Mobilizon.Events.Event
-  alias Mobilizon.Events.Comment
-  alias Mobilizon.Actors.Actor
-  alias MobilizonWeb.API.Reports
-  alias Mobilizon.Reports.{Report, Note}
-  alias Mobilizon.Activity
-  alias Mobilizon.Users.User
-  alias Mobilizon.Users
-
   import Mobilizon.Factory
 
+  alias Mobilizon.Actors.Actor
+  alias Mobilizon.Events.{Activity, Comment, Event}
+  alias Mobilizon.Reports.{Report, Note}
+  alias Mobilizon.Users
+  alias Mobilizon.Users.User
+
+  alias MobilizonWeb.API.Reports
+
   describe "reports" do
     test "creates a report on a event" do
       %Actor{id: reporter_id, url: reporter_url} = insert(:actor)