--- Source/WebCore/xml/XPathGrammar.y.orig	2017-06-16 14:46:36.000000000 +0200
+++ Source/WebCore/xml/XPathGrammar.y	2020-09-18 23:36:10.000000000 +0200
@@ -53,6 +53,7 @@
 
 %pure_parser
 %parse-param { WebCore::XPath::Parser* parser }
+%define api.header.include { "XPathGrammar.h" }
 
 %union
 {