diff --git a/hive/server/common/mutes.py b/hive/server/common/mutes.py
index 4b80510c4ff6a2b16729095003e2391787bf5f30..375501991d4ef60f883488efd3d676605ad22c13 100644
--- a/hive/server/common/mutes.py
+++ b/hive/server/common/mutes.py
@@ -14,7 +14,7 @@ WITH blacklisted_users AS (
     SELECT following, 'my_blacklist' AS source FROM hive_follows WHERE follower =
         (SELECT id FROM hive_accounts WHERE name = :observer )
     AND blacklisted
-    UNION
+    UNION ALL
     SELECT following, 'my_followed_blacklists' AS source FROM hive_follows WHERE follower IN
     (SELECT following FROM hive_follows WHERE follower =
         (SELECT id FROM hive_accounts WHERE name = :observer )