--- ../libstudxml/parser.hxx	2026-06-07 13:58:33.988585883 +0300
+++ ../libstudxml/parser.hxx	2026-06-07 13:59:46.184975841 +0300
@@ -14,11 +14,7 @@
 
 #include <libstudxml/details/config.hxx>
 
-#ifndef LIBSTUDXML_EXTERNAL_EXPAT
-#  include <libstudxml/details/expat/expat.h>
-#else
-#  include <expat.h>
-#endif
+#include <expat.h>
 
 // We only support UTF-8 Expat.
 //