diff --git a/src/backend/parser/gram.y b/src/backend/parser/gram.y
index dd95961841..1d39674de4 100644
--- a/src/backend/parser/gram.y
+++ b/src/backend/parser/gram.y
@@ -4126,9 +4126,7 @@ TriggerFuncArg:
 				}
 			| FCONST								{ $$ = makeString($1); }
 			| Sconst								{ $$ = makeString($1); }
-			| BCONST								{ $$ = makeString($1); }
-			| XCONST								{ $$ = makeString($1); }
-			| ColId									{ $$ = makeString($1); }
+			| ColLabel								{ $$ = makeString($1); }
 		;
 
 OptConstrFromTable: