diff --git a/bot/reviewbot/processing/review.py b/bot/reviewbot/processing/review.py
index 2f491ae..e0cab77 100644
--- a/bot/reviewbot/processing/review.py
+++ b/bot/reviewbot/processing/review.py
@@ -673,7 +673,7 @@ def __init__(self, api_root, review_request_id, diff_revision, settings):
                 review_request_id=self.review_request_id,
                 diff_revision=self.diff_revision)
 
-            for filediff in filediffs:
+            for filediff in filediffs.all_items:
                 # Filter out binary files and symlinks.
                 if (getattr(filediff, 'binary', False) or
                     filediff.status not in self._VALID_FILEDIFF_STATUS_TYPES or