diff --git a/pr_agent/tools/pr_reviewer.py b/pr_agent/tools/pr_reviewer.py
index dc563f23..f2ecc09b 100644
--- a/pr_agent/tools/pr_reviewer.py
+++ b/pr_agent/tools/pr_reviewer.py
@@ -63,6 +63,7 @@ class PRReviewer:
             'answer_str': answer_str,
             "extra_instructions": get_settings().pr_reviewer.extra_instructions,
             "commit_messages_str": self.git_provider.get_commit_messages(),
+            "custom_labels": ""
         }
 
         self.token_handler = TokenHandler(