diff --git a/bot/code_review_bot/report/phabricator.py b/bot/code_review_bot/report/phabricator.py
index a1cdb2faf..0ddc98bf4 100644
--- a/bot/code_review_bot/report/phabricator.py
+++ b/bot/code_review_bot/report/phabricator.py
@@ -171,6 +171,12 @@ def publish(self, issues, revision, task_failures, notices, reviewers):
             )
             return
 
+        if not hasattr(self, "api"):
+            logger.warning(
+                "Phabricator API is not set: you need to configure credentials"
+            )
+            return
+
         # Add extra reviewers groups to the revision
         if reviewers:
             phids = []