diff --git a/parser.c b/parser.c
index 781aa0c5..1e23d26a 100644
--- a/parser.c
+++ b/parser.c
@@ -8327,6 +8327,7 @@ xmlParseStringPEReference(xmlParserCtxtPtr ctxt, const xmlChar **str) {
 	entity = ctxt->sax->getParameterEntity(ctxt->userData, name);
     if (ctxt->instate == XML_PARSER_EOF) {
 	xmlFree(name);
+	*str = ptr;
 	return(NULL);
     }
     if (entity == NULL) {