diff --git a/xmlIO.c b/xmlIO.c
old mode 100644
new mode 100755
index 299b6d21d9401b4bda24a500aa8f41dc5310f78a..ac25d025636d50318d5b4a2a8d37c136ed0fd1b2
--- a/xmlIO.c
+++ b/xmlIO.c
@@ -2383,6 +2383,7 @@ xmlAllocOutputBuffer(xmlCharEncodingHandlerPtr encoder) {
     if (encoder != NULL) {
         ret->conv = xmlBufCreateSize(4000);
 	if (ret->conv == NULL) {
+        xmlBufFree(ret->buffer);
 	    xmlFree(ret);
 	    return(NULL);
 	}