diff --git a/contracts/common/IForwarderFee.sol b/contracts/common/IForwarderFee.sol
new file mode 100644
index 000000000..80913fe64
--- /dev/null
+++ b/contracts/common/IForwarderFee.sol
@@ -0,0 +1,10 @@
+/*
+ * SPDX-License-Identitifer:    MIT
+ */
+
+pragma solidity ^0.4.24;
+
+
+interface IForwarderFee {
+    function forwardFee() external view returns (address, uint256);
+}