We report the spectroscopic observation of the transient AT2020ber (also designated as M31N 2020-01b) reported in ATel #13425 as a probable nova in M31. We obtained Gemini GMOS spectrum (4x300 sec exposures) of this source on 30 January 2020 UT through the ToO program GN-2019B-Q-221 (PI: Lee, C.-H.). The spectrum clearly shows strong H-alpha along with He I lines suggesting it is a fast nova.