diff --git a/git_cl.py b/git_cl.py
index e8f7e5535..4dd1cd3b5 100755
--- a/git_cl.py
+++ b/git_cl.py
@@ -3156,7 +3156,7 @@ class _GerritChangelistImpl(_ChangelistCodereviewBase):
 
   def GetReviewers(self):
     details = self._GetChangeDetail(['DETAILED_ACCOUNTS'])
-    return [reviewer['email'] for reviewer in details['reviewers']['REVIEWER']]
+    return [r['email'] for r in details['reviewers'].get('REVIEWER', [])]
 
 
 _CODEREVIEW_IMPLEMENTATIONS = {