diff --git a/client/src/cmdhfmfu.c b/client/src/cmdhfmfu.c
index 6f7c9cdfa..d56ae5123 100644
--- a/client/src/cmdhfmfu.c
+++ b/client/src/cmdhfmfu.c
@@ -4392,10 +4392,6 @@ static int CmdHF14AMfUPwdGen(const char *Cmd) {
         if (u_len != 7 && u_len != 4) {
             PrintAndLogEx(WARNING, "Key must be 7 hex bytes");
             return PM3_EINVARG;
-        } else {
-            // adapt to 7 bytes :)
-            memset(uid + 4, 0x00, 3);
-            u_len = 7;
         }
     }