diff --git a/pagure/lib/git.py b/pagure/lib/git.py
index 1c33120..a0aac2e 100644
--- a/pagure/lib/git.py
+++ b/pagure/lib/git.py
@@ -337,7 +337,7 @@ def update_ticket_from_git(
         session, issue, tags, username=user.user, ticketfolder=None)
 
     # Update assignee
-    assignee = get_user_from_json(json_data.get('assignee', {}))
+    assignee = get_user_from_json(session, json_data.get('assignee', {}))
     if assignee:
         pagure.lib.add_issue_assignee(
             session, issue, assignee.username,