diff --git a/pagure/ui/repo.py b/pagure/ui/repo.py
index db94706..5a17114 100644
--- a/pagure/ui/repo.py
+++ b/pagure/ui/repo.py
@@ -1848,6 +1848,7 @@ def view_project_activity(repo):
 
 @APP.route('/watch/<repo>/settings/<watch>', methods=['POST'])
 @APP.route('/watch/fork/<user>/<repo>/settings/<watch>', methods=['POST'])
+@login_required
 def watch_repo(repo, watch, user=None):
     """ Marked for watching or Unwatching
     """