Unexpected behavior when getting a value from .env file for expireIn property - app.module.ts

app.module.ts

import { Module } from '@nestjs/common';
import { UsersModule } from './users/users.module';
import { AuthModule } from './auth/auth.module';
import { ConfigModule } from '@nestjs/config';

@Module({
  imports: [
    UsersModule,
    AuthModule,
    ConfigModule.forRoot({
      isGlobal: true,
      envFilePath: [`.env.${process.env.STAGE}`],
    }),
  ],
})
export class AppModule {}