How to transfer Prophet X Sustain Pedal MIDI sygnal to Ableton/DAW?

Hey together,
I have been trying to solve this problem now for quite a while but could not find a solution yet.

I have an M-Audio Sustain Pedal connected to my Prophet 12 and sometimes use the Prophet as a MIDI-Keyboard for piano vsts in Ableton Live 10.
Now, my problem is that Ableton doesn’t receive the Sustain Pedal sygnals (normal modulation pedal sygnals are received by Ableton though).
I found out that I can specify the CC values for the normal pedals but not for the Sustain pedal (always CC 64, right?).

Is there a solution to make Ableton recognize the sustain pedal going through the Prophet or do I need some kind of ‘MIDI Sustain Pedal’ directly connected to the computer?
Any help will be very much appreciated!  :D