diff --git a/phpBB/includes/functions_compatibility.php b/phpBB/includes/functions_compatibility.php
index 4112812dc6..cd9869842e 100644
--- a/phpBB/includes/functions_compatibility.php
+++ b/phpBB/includes/functions_compatibility.php
@@ -712,3 +712,24 @@ function phpbb_build_hidden_fields_for_query_params($request, $exclude = null)
 	}
 	return $hidden;
 }
+
+/**
+* Delete all PM(s) for a given user and delete the ones without references
+*
+* @param	int		$user_id	ID of the user whose private messages we want to delete
+*
+* @return	boolean		False if there were no pms found, true otherwise.
+*
+* @deprecated 3.2.10 (To be removed 4.0.0)
+*/
+function phpbb_delete_user_pms($user_id)
+{
+	$user_id = (int) $user_id;
+
+	if (!$user_id)
+	{
+		return false;
+	}
+
+	return phpbb_delete_users_pms(array($user_id));
+}
diff --git a/phpBB/includes/functions_privmsgs.php b/phpBB/includes/functions_privmsgs.php
index 436b437cfa..58fe79598b 100644
--- a/phpBB/includes/functions_privmsgs.php
+++ b/phpBB/includes/functions_privmsgs.php
@@ -1179,25 +1179,6 @@ function delete_pm($user_id, $msg_ids, $folder_id)
 	return true;
 }
 
-/**
-* Delete all PM(s) for a given user and delete the ones without references
-*
-* @param	int		$user_id	ID of the user whose private messages we want to delete
-*
-* @return	boolean		False if there were no pms found, true otherwise.
-*/
-function phpbb_delete_user_pms($user_id)
-{
-	$user_id = (int) $user_id;
-
-	if (!$user_id)
-	{
-		return false;
-	}
-
-	return phpbb_delete_users_pms(array($user_id));
-}
-
 /**
 * Delete all PM(s) for given users and delete the ones without references
 *