diff --git a/endpoints/registry.py b/endpoints/registry.py
index d701fd140..6c9800f5c 100644
--- a/endpoints/registry.py
+++ b/endpoints/registry.py
@@ -239,7 +239,7 @@ def put_image_checksum(namespace, repository, image_id):
     abort(400, "Missing checksum for image %(image_id)s", issue='missing-checksum', image_id=image_id)
 
   if not session.get('checksum'):
-    abort(400, 'Checksum not found in Cookie for image %(imaage_id)s',
+    abort(400, 'Checksum not found in Cookie for image %(image_id)s',
           issue='missing-checksum-cookie', image_id=image_id)
 
   profile.debug('Looking up repo image')