diff --git a/contracts/activity/CECDistributor.sol b/contracts/activity/CECDistributor.sol
index 4dbde93..7aa2893 100644
--- a/contracts/activity/CECDistributor.sol
+++ b/contracts/activity/CECDistributor.sol
@@ -32,7 +32,6 @@ contract CECDistributor is ReentrancyGuard, Pausable, Ownable, Governable {
 
   uint256 public start = 0;
   uint256 public constant TGE_PRECISION = 1000000;
-  uint256 public lockDuration;
 
   event EventInfoUpdated(address indexed account, ReleaseInfo info);
   event EventCECClaimed(address indexed user, address indexed to, uint256 amount);