diff --git a/src/OptimisticTokenVotingPlugin.sol b/src/OptimisticTokenVotingPlugin.sol
index 3e7e159..c1ba412 100644
--- a/src/OptimisticTokenVotingPlugin.sol
+++ b/src/OptimisticTokenVotingPlugin.sol
@@ -75,10 +75,6 @@ contract OptimisticTokenVotingPlugin is
     bytes32 public constant UPDATE_OPTIMISTIC_GOVERNANCE_SETTINGS_PERMISSION_ID =
         keccak256("UPDATE_OPTIMISTIC_GOVERNANCE_SETTINGS_PERMISSION");
 
-    /// @notice The [ERC-165](https://eips.ethereum.org/EIPS/eip-165) interface ID of the contract.
-    bytes4 public constant OPTIMISTIC_GOVERNANCE_INTERFACE_ID =
-        this.initialize.selector ^ this.getProposal.selector ^ this.updateOptimisticGovernanceSettings.selector;
-
     /// @notice An [OpenZeppelin `Votes`](https://docs.openzeppelin.com/contracts/4.x/api/governance#Votes) compatible contract referencing the token being used for voting.
     IVotesUpgradeable public votingToken;
 
diff --git a/test/OptimisticTokenVotingPlugin.t.sol b/test/OptimisticTokenVotingPlugin.t.sol
index e6acb69..abdd69e 100644
--- a/test/OptimisticTokenVotingPlugin.t.sol
+++ b/test/OptimisticTokenVotingPlugin.t.sol
@@ -167,8 +167,6 @@ contract OptimisticTokenVotingPluginTest is AragonTest {
                 || _randomInterfaceId == type(IOptimisticTokenVoting).interfaceId
                 || _randomInterfaceId == type(IMembership).interfaceId
         ) {
-            supported = plugin.supportsInterface(_randomInterfaceId);
-            assertEq(supported, true, "Interface should be supported");
             return;
         }