diff --git a/appl/ftp/ftpd/ftpcmd.y b/appl/ftp/ftpd/ftpcmd.y
index 25e29fb1f..57a54cc76 100644
--- a/appl/ftp/ftpd/ftpcmd.y
+++ b/appl/ftp/ftpd/ftpcmd.y
@@ -409,8 +409,9 @@ cmd
 			lreply(0, " SIZE");
 			reply(211, "End");
 		}
-	| OPTS SP foo CRLF
+	| OPTS SP STRING CRLF
 		{
+			free ($3);
 			reply(501, "Bad options");
 		}