diff --git a/contracts/mainnet/connectors/uniswap_v3_erc20_staking/helpers.sol b/contracts/mainnet/connectors/uniswap_v3_erc20_staking/helpers.sol
index e409b6f5..1d0c6d94 100644
--- a/contracts/mainnet/connectors/uniswap_v3_erc20_staking/helpers.sol
+++ b/contracts/mainnet/connectors/uniswap_v3_erc20_staking/helpers.sol
@@ -5,7 +5,7 @@ pragma experimental ABIEncoderV2;
 import { DSMath } from "../../common/math.sol";
 import { Basic } from "../../common/basic.sol";
 import { TokenInterface } from "../../common/interfaces.sol";
-import { IStakingRewards, IStakingRewardsFactory } from "./interface.sol";
+import { IStakingRewards, IStakingRewardsFactory, IGUniPoolResolver } from "./interface.sol";
 
 abstract contract Helpers is DSMath, Basic {