diff --git a/contracts/src/abstracts/AProtocolClaimer.sol b/contracts/src/abstracts/AProtocolClaimer.sol
index d89cebf..aacb5a9 100644
--- a/contracts/src/abstracts/AProtocolClaimer.sol
+++ b/contracts/src/abstracts/AProtocolClaimer.sol
@@ -1,9 +1,15 @@
 // SPDX-License-Identifier: GPL-3.0-or-later
 pragma solidity 0.8.20;
 
-abstract contract AProtocolClaimer {
-    event ProtocolRewardsHarvest();
+import { ReentrancyGuard } from "solmate/utils/ReentrancyGuard.sol";
+import { AOperator } from "./AOperator.sol";
 
+/**
+ * @title Incentivized Locker contract
+ * @author 0xtekgrinder
+ * @notice Locker contract capable of claiming protocol rewards
+ */
+abstract contract AProtocolClaimer is ReentrancyGuard, AOperator {
     /**
      * @dev Harvest rewards & send them to the Controller
      */
@@ -12,8 +18,7 @@ abstract contract AProtocolClaimer {
     /**
      * @notice Harvest rewards
      */
-    function harvest() external {
-        emit ProtocolRewardsHarvest();
+    function harvest() external nonReentrant onlyOperatorOrOwner {
         _harvest();
     }
 }