diff --git a/fdroidserver/lint.py b/fdroidserver/lint.py
index 1e80cc5b..501532fd 100644
--- a/fdroidserver/lint.py
+++ b/fdroidserver/lint.py
@@ -85,9 +85,10 @@ def main():
                 lastcommit = build['commit']
 
         # Potentially incorrect UCM
-        if (app['Update Check Mode'] == 'RepoManifest' and
+        if (app['Update Check Mode'] in ['RepoManifest', 'None'] and
                 any(s in lastcommit for s in ('.', ',', '_', '-', '/'))):
-            warn("Last used commit '%s' looks like a tag, but Update Check Mode is RepoManifest" % lastcommit)
+            warn("Last used commit '%s' looks like a tag, but Update Check Mode is '%s'" % (
+                lastcommit, app['Update Check Mode']))
 
         # No license
         if app['License'] == 'Unknown':