diff --git a/src/backend/utils/adt/ruleutils.c b/src/backend/utils/adt/ruleutils.c
index 467b08198b8..474ca7e9ae3 100644
--- a/src/backend/utils/adt/ruleutils.c
+++ b/src/backend/utils/adt/ruleutils.c
@@ -5956,9 +5956,19 @@ get_select_query_def(Query *query, deparse_context *context)
 	{
 		if (query->limitOption == LIMIT_OPTION_WITH_TIES)
 		{
+			/*
+			 * The limitCount arg is a c_expr, so it needs parens. Simple
+			 * literals and function expressions would not need parens, but
+			 * unfortunately it's hard to tell if a Const will be printed as a
+			 * simple literal like 123 or as a typecast expression, like
+			 * '-123'::int4. The grammar accepts the former without quoting,
+			 * but not the latter.
+			 */
 			appendContextKeyword(context, " FETCH FIRST ",
 								 -PRETTYINDENT_STD, PRETTYINDENT_STD, 0);
+			appendStringInfoChar(buf, '(');
 			get_rule_expr(query->limitCount, context, false);
+			appendStringInfoChar(buf, ')');
 			appendStringInfoString(buf, " ROWS WITH TIES");
 		}
 		else