diff --git a/src/backend/parser/parse_clause.c b/src/backend/parser/parse_clause.c
index af80aa4593..4402be6845 100644
--- a/src/backend/parser/parse_clause.c
+++ b/src/backend/parser/parse_clause.c
@@ -3225,13 +3225,13 @@ transformOnConflictArbiter(ParseState *pstate,
 		List	   *save_namespace;
 
 		/*
-		 * While we process the arbiter expressions, accept only non-qualified
-		 * references to the target table. Hide any other relations.
+		 * While we process the arbiter expressions, accept only references to
+		 * the target table. Hide any other relations.
 		 */
 		save_namespace = pstate->p_namespace;
 		pstate->p_namespace = NIL;
 		addNSItemToQuery(pstate, pstate->p_target_nsitem,
-						 false, false, true);
+						 false, true, true);
 
 		if (infer->indexElems)
 			*arbiterExpr = resolve_unique_index_expr(pstate, infer,