diff --git a/ext/dom/document.c b/ext/dom/document.c
index 2abf6636713..d4bb90937f1 100644
--- a/ext/dom/document.c
+++ b/ext/dom/document.c
@@ -27,7 +27,6 @@
 #include "xml_serializer.h"
 #include "internal_helpers.h"
 #include "dom_properties.h"
-#include <libxml/SAX.h>
 #ifdef LIBXML_SCHEMAS_ENABLED
 #include <libxml/relaxng.h>
 #include <libxml/xmlschemas.h>