diff --git a/parser.c b/parser.c
index 744fc83..37533f7 100644
--- a/parser.c
+++ b/parser.c
@@ -10410,7 +10410,7 @@
 
     ctxt = xmlNewParserCtxt();
     if (ctxt == NULL) {
-	xmlFree(buf);
+	xmlFreeParserInputBuffer(buf);
 	return(NULL);
     }
     if (sax != NULL) {
@@ -10421,7 +10421,7 @@
 	ctxt->sax = (xmlSAXHandlerPtr) xmlMalloc(sizeof(xmlSAXHandler));
 	if (ctxt->sax == NULL) {
 	    xmlErrMemory(ctxt, NULL);
-	    xmlFree(ctxt);
+	    xmlFreeParserCtxt(ctxt);
 	    return(NULL);
 	}
 	memset(ctxt->sax, 0, sizeof(xmlSAXHandler));