diff --git a/contracts/ethregistrar/IETHRegistrarController.sol b/contracts/ethregistrar/IETHRegistrarController.sol
index 540c1a9a..d0340b3f 100644
--- a/contracts/ethregistrar/IETHRegistrarController.sol
+++ b/contracts/ethregistrar/IETHRegistrarController.sol
@@ -24,6 +24,8 @@ interface IETHRegistrarController {
 
     function commit(bytes32) external;
 
+    function commitments(bytes32) external view returns (uint256);
+
     function register(
         string calldata,
         address,