diff --git a/ext/dom/documentfragment.c b/ext/dom/documentfragment.c
--- a/ext/dom/documentfragment.c
+++ b/ext/dom/documentfragment.c
@@ -131,7 +131,9 @@ PHP_METHOD(domdocumentfragment, appendXML) {
 	}
 
 	if (data) {
+		PHP_LIBXML_SANITIZE_GLOBALS(parse);
 		err = xmlParseBalancedChunkMemory(nodep->doc, NULL, NULL, 0, (xmlChar *) data, &lst);
+		PHP_LIBXML_RESTORE_GLOBALS(parse);
 		if (err != 0) {
 			RETURN_FALSE;
 		}