diff --git a/contracts/protocol/lendingpool/LendingPoolConfigurator.sol b/contracts/protocol/lendingpool/LendingPoolConfigurator.sol
index 17265a14..2e08d70c 100644
--- a/contracts/protocol/lendingpool/LendingPoolConfigurator.sol
+++ b/contracts/protocol/lendingpool/LendingPoolConfigurator.sol
@@ -24,6 +24,7 @@ import {DataTypes} from '../libraries/types/DataTypes.sol';
 
 contract LendingPoolConfigurator is VersionedInitializable {
   using SafeMath for uint256;
+  using PercentageMath for uint256;
   using ReserveConfiguration for DataTypes.ReserveConfigurationMap;
 
   /**