diff --git a/src/ejabberd_sm.erl b/src/ejabberd_sm.erl
index 19ab9cb5a..2b704d999 100644
--- a/src/ejabberd_sm.erl
+++ b/src/ejabberd_sm.erl
@@ -800,7 +800,7 @@ commands() ->
 			tags = [session],
 			desc = "List user's connected resources",
 			module = ?MODULE, function = user_resources,
-			args = [{user, string}, {host, string}],
+			args = [{user, binary}, {host, binary}],
 			result = {resources, {list, {resource, string}}}}].
 
 -spec connected_users() -> [binary()].
diff --git a/src/ejabberd_xmlrpc.erl b/src/ejabberd_xmlrpc.erl
index acda0c7f9..76610af8e 100644
--- a/src/ejabberd_xmlrpc.erl
+++ b/src/ejabberd_xmlrpc.erl
@@ -345,14 +345,18 @@ build_fault_response(Code, ParseString, ParseArgs) ->
 do_command(AccessCommands, Auth, Command, AttrL, ArgsF,
 	   ResultF) ->
     ArgsFormatted = format_args(AttrL, ArgsF),
-    {UserT, ServerT, PasswordT} = Auth,
-    AuthBin = {list_to_binary(UserT), list_to_binary(ServerT), list_to_binary(PasswordT)},
+    AuthBin = convert_auth(Auth),
     Result =
 	ejabberd_commands:execute_command(AccessCommands, AuthBin,
 					  Command, ArgsFormatted),
     ResultFormatted = format_result(Result, ResultF),
     {command_result, ResultFormatted}.
 
+convert_auth(noauth) ->
+    noauth;
+convert_auth({UserT, ServerT, PasswordT}) ->
+    {list_to_binary(UserT), list_to_binary(ServerT), list_to_binary(PasswordT)}.
+
 %%-----------------------------
 %% Format arguments
 %%-----------------------------