diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c
index f61f794755..334b9b42bd 100644
--- a/src/backend/parser/parse_clause.c
+++ b/src/backend/parser/parse_clause.c
@@ -1573,6 +1573,7 @@ transformFromClauseItem(ParseState *pstate, Node *n,
 			jnsitem->p_names = j->join_using_alias;
 			jnsitem->p_rte = nsitem->p_rte;
 			jnsitem->p_rtindex = nsitem->p_rtindex;
+			jnsitem->p_perminfo = NULL;
 			/* no need to copy the first N columns, just use res_nscolumns */
 			jnsitem->p_nscolumns = res_nscolumns;
 			/* set default visibility flags; might get changed later */
diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c
index 41d60494b9..864ea9b0d5 100644
--- a/src/backend/parser/parse_relation.c
+++ b/src/backend/parser/parse_relation.c
@@ -1392,6 +1392,7 @@ buildNSItemFromLists(RangeTblEntry *rte, Index rtindex,
 	nsitem->p_names = rte->eref;
 	nsitem->p_rte = rte;
 	nsitem->p_rtindex = rtindex;
+	nsitem->p_perminfo = NULL;
 	nsitem->p_nscolumns = nscolumns;
 	/* set default visibility flags; might get changed later */
 	nsitem->p_rel_visible = true;