diff --git a/zuul/lib/gerrit.py b/zuul/lib/gerrit.py
index 9c72d4436b..15c7c05834 100644
--- a/zuul/lib/gerrit.py
+++ b/zuul/lib/gerrit.py
@@ -123,7 +123,7 @@ class Gerrit(object):
         cmd = 'gerrit review --project %s --message "%s"' % (
             project, message)
         for k,v in action.items():
-            if v == True:
+            if v is True:
                 cmd += ' --%s' % k
             else:
                 cmd += ' --%s %s' % (k, v)