diff --git a/src/backend/access/transam/xact.c b/src/backend/access/transam/xact.c
index e22bdacbba..d8523f37b2 100644
--- a/src/backend/access/transam/xact.c
+++ b/src/backend/access/transam/xact.c
@@ -1168,7 +1168,8 @@ RecordTransactionCommit(void)
 	 * Note that at this stage we have marked clog, but still show as running
 	 * in the procarray and continue to hold locks.
 	 */
-	SyncRepWaitForLSN(XactLastRecEnd);
+	if (wrote_xlog)
+		SyncRepWaitForLSN(XactLastRecEnd);
 
 	/* Reset XactLastRecEnd until the next transaction writes something */
 	XactLastRecEnd.xrecoff = 0;