diff --git a/src/backend/access/hash/hashovfl.c b/src/backend/access/hash/hashovfl.c
index c206e704d4d..912e38ca71e 100644
--- a/src/backend/access/hash/hashovfl.c
+++ b/src/backend/access/hash/hashovfl.c
@@ -341,9 +341,10 @@ found:
 			metap->hashm_mapp[metap->hashm_nmaps] = BufferGetBlockNumber(newmapbuf);
 			metap->hashm_nmaps++;
 			metap->hashm_spares[splitnum]++;
-			MarkBufferDirty(metabuf);
 		}
 
+		MarkBufferDirty(metabuf);
+
 		/*
 		 * for new overflow page, we don't need to explicitly set the bit in
 		 * bitmap page, as by default that will be set to "in use".