diff --git a/src/backend/catalog/index.c b/src/backend/catalog/index.c
index c339a2bb779..8f62b454f75 100644
--- a/src/backend/catalog/index.c
+++ b/src/backend/catalog/index.c
@@ -1357,6 +1357,8 @@ index_constraint_create(Relation heapRelation,
 	 */
 	if (OidIsValid(parentConstraintId))
 	{
+		ObjectAddress	referenced;	/* XXX shadow outer variable */
+
 		ObjectAddressSet(myself, ConstraintRelationId, conOid);
 		ObjectAddressSet(referenced, ConstraintRelationId, parentConstraintId);
 		recordDependencyOn(&myself, &referenced, DEPENDENCY_PARTITION_PRI);