how to avoid giving junk names in production build

Question

How to avoid junk names given when angular application build in production mode (ng build --prod)

example when i build normally using ng build command my module request is going like this

http://localhost:8762/accsm/cp-create-cp-create-module.js

same when i run in production mode using ng build --prod my request name is giving some junk name as follows

http://localhost:8762/accsm/5.4038f5bfd96424556526.js

How do avoid this junk name issue in production mode also?

Regards, Bikshapathi