diff --git a/src/ejabberd_sm.erl b/src/ejabberd_sm.erl
index 9fc6a86ef..72aeda952 100644
--- a/src/ejabberd_sm.erl
+++ b/src/ejabberd_sm.erl
@@ -73,7 +73,7 @@
 -include("jlib.hrl").
 
 -include("ejabberd_commands.hrl").
-
+-include_lib("stdlib/include/ms_transform.hrl").
 -include("mod_privacy.hrl").
 
 -record(session, {sid, usr, us, priority, info}).