Batch File To Loop Menu

I'm creating a batch file that will launch when I login to my user account. I followed this tutorial to create a batch file with a menu. It works, however, if the user enters a number that is not listed, I want it to go back to the menu. How would I implement that?

Side note: I understand I could use something more flexible like Powershell, however, I prefer batch files.

Here is what I have so far:

Code:

@ECHO OFF
CLS
:MENU
echo Welcome %USERNAME%

echo 1 - Start KeePass
echo 2 - Backup
echo 3 - Exit

SET /P M=Type 1,2,3 then press Enter:


IF %M%==1 GOTO StarKeePass
IF %M%==2 GOTO Backup
IF %M%==3 GOTO EOF


:StarKeePass
SET keePass="%USERPROFILE%\KeePass\KeePass-2.30\KeePass.exe"
SET kdb="%USERPROFILE%\KeePass\PasswordDatabase\PasswordDatabase.kdbx"

echo I'll start KeePass for You
START "" %keePass% %kdb% 

GOTO MENU

:Backup
SET backup="%USERPROFILE%\backup.bat"
call %backup%

GOTO MENU

Found a solution:

Code:

@ECHO OFF
CLS


:MENU
echo Welcome %USERNAME%

echo 1 - Start KeePass
echo 2 - Backup
echo 3 - Exit

SET /P M=Type 1,2,3 then press Enter:


IF %M%==1 GOTO StarKeePass
IF %M%==2 GOTO Backup
IF %M%==3 GOTO :EOF
GOTO MENU


:StarKeePass
SET keePass="%USERPROFILE%\KeePass\KeePass-2.30\KeePass.exe"
SET kdb="%USERPROFILE%\KeePass\PasswordDatabase\PasswordDatabase.kdbx"

echo I'll start KeePass for You
START "" %keePass% %kdb% 

GOTO MENU

:Backup
SET backup="%USERPROFILE%\backup.bat"
call %backup%

GOTO MENU

Put a GOTO MENU after the if statements