diff --git a/src/backend/access/transam/xlog.c b/src/backend/access/transam/xlog.c
index b602e28..f58fa0a 100644
--- a/src/backend/access/transam/xlog.c
+++ b/src/backend/access/transam/xlog.c
@@ -6687,7 +6687,7 @@ StartupXLOG(void)
 	if (ControlFile->state == DB_SHUTDOWNED)
 		XLogCtl->unloggedLSN = ControlFile->unloggedLSN;
 	else
-		XLogCtl->unloggedLSN = 1;
+		XLogCtl->unloggedLSN = FirstNormalUnloggedLSN;
 
 	/*
 	 * We must replay WAL entries using the same TimeLineID they were created
diff --git a/src/bin/pg_resetwal/pg_resetwal.c b/src/bin/pg_resetwal/pg_resetwal.c
index f85ea2d..b2f648f 100644
--- a/src/bin/pg_resetwal/pg_resetwal.c
+++ b/src/bin/pg_resetwal/pg_resetwal.c
@@ -700,7 +700,7 @@ GuessControlValues(void)
 	ControlFile.state = DB_SHUTDOWNED;
 	ControlFile.time = (pg_time_t) time(NULL);
 	ControlFile.checkPoint = ControlFile.checkPointCopy.redo;
-	ControlFile.unloggedLSN = 1;
+	ControlFile.unloggedLSN = FirstNormalUnloggedLSN;
 
 	/* minRecoveryPoint, backupStartPoint and backupEndPoint can be left zero */