diff --git a/gb.net.curl/src/CHttpClient.c b/gb.net.curl/src/CHttpClient.c
index a04bfa89b..2d920025e 100644
--- a/gb.net.curl/src/CHttpClient.c
+++ b/gb.net.curl/src/CHttpClient.c
@@ -151,7 +151,9 @@ static void http_reset(void *_object)
 	GB.FreeString(&THIS->data);
 	
 	GB.Unref(&THIS_HTTP->headers);
+	THIS_HTTP->headers = NULL;
 	GB.Unref(&THIS_HTTP->sent_headers);
+	THIS_HTTP->sent_headers = NULL;
 	
 	if (THIS_HTTP->sContentType)
 	{