diff --git a/src/backend/utils/cache/relcache.c b/src/backend/utils/cache/relcache.c
index 4c0950bc8f0..436c4917e8e 100644
--- a/src/backend/utils/cache/relcache.c
+++ b/src/backend/utils/cache/relcache.c
@@ -2533,9 +2533,7 @@ RelationInvalidateRelation(Relation relation)
 	RelationCloseSmgr(relation);
 
 	/* Free AM cached data, if any */
-	if (relation->rd_amcache)
-		pfree(relation->rd_amcache);
-	relation->rd_amcache = NULL;
+	release_rd_amcache(relation);
 
 	relation->rd_isvalid = false;
 }