OS X System Report, Macbook 13" 2017:

Charger information:

Charger connected: Yes
Power (W): 65
Battery charging: Yes

So it works without any problems and you get two high-quality power supplies with even a little more power for the price of one Apple power supply.

Technically it should work, but we recommend an original Apple power adapter.
Apple 61W USB-C Power Adapter (61W)