diff --git a/src/backend/access/heap/rewriteheap.c b/src/backend/access/heap/rewriteheap.c
index 131ec7b8d7..19617e6eaa 100644
--- a/src/backend/access/heap/rewriteheap.c
+++ b/src/backend/access/heap/rewriteheap.c
@@ -350,10 +350,9 @@ end_heap_rewrite(RewriteState state)
 	 *
 	 * It's obvious that we must do this when not WAL-logging. It's less
 	 * obvious that we have to do it even if we did WAL-log the pages. The
-	 * reason is the same as in tablecmds.c's copy_relation_data(): we're
-	 * writing data that's not in shared buffers, and so a CHECKPOINT
-	 * occurring during the rewriteheap operation won't have fsync'd data we
-	 * wrote before the checkpoint.
+	 * reason is that we're writing data that's not in shared buffers, and
+	 * so a CHECKPOINT occurring during the rewriteheap operation won't
+	 * have fsync'd data we wrote before the checkpoint.
 	 */
 	if (RelationNeedsWAL(state->rs_new_rel))
 		heap_sync(state->rs_new_rel);