Does anyone know how to deposit VERI into EtherDelta?

I have Trezor with myetherwallet. On EtherDelta, I click Import account, which imports my ETH, but doesn't show my VERI. After I type the amount of VERI to deposit, I get the following error:

You tried to send an Ethereum transaction but there was an error. Make sure the account you have selected in the account dropdown (upper right) matches the one you have selected in MetaMask

What am I doing wrong?