git.diff

diff --git a/contracts/dev-utils/contracts/src/DevUtils.sol b/contracts/dev-utils/contracts/src/DevUtils.sol
index 44166d22b..46107efdf 100644
--- a/contracts/dev-utils/contracts/src/DevUtils.sol
+++ b/contracts/dev-utils/contracts/src/DevUtils.sol
@@ -19,6 +19,9 @@
 pragma solidity ^0.5.5;
 pragma experimental ABIEncoderV2;
 
+import "@0x/contracts-exchange-libs/contracts/src/LibEIP712ExchangeDomain.sol";
+import "@0x/contracts-exchange-libs/contracts/src/LibOrder.sol";
+import "@0x/contracts-utils/contracts/src/LibEIP712.sol";
 import "./OrderValidationUtils.sol";
 import "./OrderTransferSimulationUtils.sol";
 import "./LibTransactionDecoder.sol";
@@ -29,6 +32,7 @@ import "./EthBalanceChecker.sol";
 contract DevUtils is
     OrderValidationUtils,
     LibTransactionDecoder,
+    LibEIP712ExchangeDomain,
     EthBalanceChecker,
     OrderTransferSimulationUtils
 {
@@ -37,4 +41,17 @@ contract DevUtils is
         OrderValidationUtils(_exchange)
         OrderTransferSimulationUtils(_exchange)
     {}
+
+    function getOrderHash(LibOrder.Order calldata order, uint256 chainId)
+        external
+        pure
+        returns (bytes32 orderHash)
+    {
+        return LibOrder.getTypedDataHash(order, LibEIP712.hashEIP712Domain(
+            _EIP712_EXCHANGE_DOMAIN_NAME,
+            _EIP712_EXCHANGE_DOMAIN_VERSION,
+            chainId,
+            address(0)
+        ));
+    }
 }