diff --git a/gerrit-server/src/main/java/com/google/gerrit/server/git/MergeOp.java b/gerrit-server/src/main/java/com/google/gerrit/server/git/MergeOp.java
index 74474f0203..338608d203 100644
--- a/gerrit-server/src/main/java/com/google/gerrit/server/git/MergeOp.java
+++ b/gerrit-server/src/main/java/com/google/gerrit/server/git/MergeOp.java
@@ -1071,6 +1071,7 @@ public class MergeOp {
     } finally {
       db.rollback();
     }
+    update.commit();
     indexer.index(db, cd.change());
   }