diff --git a/proxytunnel.c b/proxytunnel.c
index d669ee7..c76a2cc 100644
--- a/proxytunnel.c
+++ b/proxytunnel.c
@@ -154,9 +154,15 @@ void closeall() {
 	 * Close all streams
 	 */
 	if (stunnel)
+	{
 		stream_close(stunnel);
+		stunnel = NULL;
+	}
 	if (std)
+	{
 		stream_close(std);
+		std = NULL;
+	}
 }
 
 /*