diff --git a/src/include/replication/syncrep.h b/src/include/replication/syncrep.h
index 417094f727ddb6320c5f090382a9d0658ad2284b..ac23ea69763b28463f96be6415717774a35fe033 100644
--- a/src/include/replication/syncrep.h
+++ b/src/include/replication/syncrep.h
@@ -44,7 +44,7 @@ extern void SyncRepCleanupAtProcExit(void);
 extern void SyncRepInitConfig(void);
 extern void SyncRepReleaseWaiters(void);
 
-/* called by wal writer */
+/* called by checkpointer */
 extern void SyncRepUpdateSyncStandbysDefined(void);
 
 /* called by various procs */