diff --git a/HTMLparser.c b/HTMLparser.c
index 9769ad5b..ebf2641f 100644
--- a/HTMLparser.c
+++ b/HTMLparser.c
@@ -5197,6 +5197,7 @@ htmlCreateMemoryParserCtxt(const char *buffer, int size) {
 
     input = xmlNewInputStream(ctxt);
     if (input == NULL) {
+	xmlFreeParserInputBuffer(buf);
 	xmlFreeParserCtxt(ctxt);
 	return(NULL);
     }