diff --git a/playbooks/roles/flag_build_commits/files/flag_commit_build.py b/playbooks/roles/flag_build_commits/files/flag_commit_build.py
index 1584424..b45b2a2 100644
--- a/playbooks/roles/flag_build_commits/files/flag_commit_build.py
+++ b/playbooks/roles/flag_build_commits/files/flag_commit_build.py
@@ -70,7 +70,7 @@ def main(msg):
         print('Skipping container build')
         return
 
-    if msg['owner'] = 'mbs/mbs.fedoraproject.org':
+    if msg['owner'] == 'mbs/mbs.fedoraproject.org':
         print('Skipping MBS builds')
         return