diff --git a/contracts/token/TokenVesting.sol b/contracts/token/TokenVesting.sol
index 7d6c87ea0..7fb33b896 100644
--- a/contracts/token/TokenVesting.sol
+++ b/contracts/token/TokenVesting.sol
@@ -3,7 +3,6 @@ pragma solidity ^0.4.11;
 import './ERC20Basic.sol';
 import './SafeERC20.sol';
 import '../ownership/Ownable.sol';
-import '../math/Math.sol';
 import '../math/SafeMath.sol';
 
 /**