Flare events on a time scale of the order of one second were observed on EV Lac by Gershberg and Petrov , Zalinian and Tovmassian , Tsvetkov, Antov and Tsvetkova . The nature of such phenomena is very mysterious. We hope that monitoring of EV Lac with high time resolution will yield the information about growing and decay times as well as fine structure of the light curve and color one. A short-lived flare of EV Lac was recorded in U and V bands in 1989, September 3 2h 14m 30s UT. The duration of the event was about 150 milliseconds.