diff --git a/src/backend/parser/parse_relation.c b/src/backend/parser/parse_relation.c
index b8307d5cf51..ae425d3679a 100644
--- a/src/backend/parser/parse_relation.c
+++ b/src/backend/parser/parse_relation.c
@@ -1619,7 +1619,6 @@ expandRTE(RangeTblEntry *rte, int rtindex, int sublevels_up,
 						char	   *label = strVal(lfirst(aliasp_item));
 
 						*colnames = lappend(*colnames, makeString(pstrdup(label)));
-						aliasp_item = lnext(aliasp_item);
 					}
 
 					if (colvars)
@@ -1635,6 +1634,8 @@ expandRTE(RangeTblEntry *rte, int rtindex, int sublevels_up,
 
 						*colvars = lappend(*colvars, varnode);
 					}
+
+					aliasp_item = lnext(aliasp_item);
 				}
 			}
 			break;