Use a cast to bytes4 instead of LibBytes

Co-authored-by: duncancmt <1207590+duncancmt@users.noreply.github.com>
0xProject · Feb 27, 2023 · b797ea7 · b797ea7
1 parent b17c03d
commit b797ea7
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/contracts/governance/src/ZeroExTimelock.sol b/contracts/governance/src/ZeroExTimelock.sol
@@ -64,7 +64,7 @@ contract ZeroExTimelock is TimelockController {
             // function signature for rollback(bytes4,address)
             // = bytes4(keccak256("rollback(bytes4,address)"))
             // = 0x9db64a40
-            require(payload.readBytes4(0) == 0x9db64a40, "TimelockController: Not a rollback call");
+            require(bytes4(payload) == bytes4(0x9db64a40), "TimelockController: Not a rollback call");
 
             _execute(target, value, payload);
             emit CallExecuted(id, i, target, value, payload);