diff --git a/backend/src/graphql/resolvers/BalanceResolver.ts b/backend/src/graphql/resolvers/BalanceResolver.ts
index c42d3d101..34aedac37 100644
--- a/backend/src/graphql/resolvers/BalanceResolver.ts
+++ b/backend/src/graphql/resolvers/BalanceResolver.ts
@@ -5,8 +5,8 @@ import { Resolver, Query, Ctx, Authorized } from 'type-graphql'
 import CONFIG from '../../config'
 import { Balance } from '../models/Balance'
 import { apiGet } from '../../apis/HttpRequest'
-import { User as tUser } from '../../typeorm/entity/User'
-import { Balance as tBalance } from '../../typeorm/entity/Balance'
+import { User as dbUser } from '../../typeorm/entity/User'
+import { Balance as dbBalance } from '../../typeorm/entity/Balance'
 import calculateDecay from '../../util/decay'
 import { roundFloorFrom4 } from '../../util/round'
 
@@ -20,8 +20,8 @@ export class BalanceResolver {
     if (!result.success) throw new Error(result.data)
 
     // load user and balance
-    const userEntity = await tUser.findByPubkeyHex(result.data.user.public_hex)
-    const balanceEntity = await tBalance.findByUser(userEntity.id)
+    const userEntity = await dbUser.findByPubkeyHex(result.data.user.public_hex)
+    const balanceEntity = await dbBalance.findByUser(userEntity.id)
     const now = new Date()
     const balance = new Balance({
       balance: roundFloorFrom4(balanceEntity.amount),