diff --git a/appl/ftp/ftpd/ftpcmd.y b/appl/ftp/ftpd/ftpcmd.y
index ba8f813d1..d0cb6eebb 100644
--- a/appl/ftp/ftpd/ftpcmd.y
+++ b/appl/ftp/ftpd/ftpcmd.y
@@ -209,6 +209,7 @@ cmd
 	| PASS SP password CRLF
 		{
 			pass($3);
+			memset ($3, 0, strlen($3));
 			free($3);
 		}
 	| PORT SP host_port CRLF