diff --git a/interfaces/IDispatcher.sol b/interfaces/IDispatcher.sol
index 42cd4f3..65a9af6 100644
--- a/interfaces/IDispatcher.sol
+++ b/interfaces/IDispatcher.sol
@@ -59,7 +59,7 @@ interface IDispatcher {
 	/**
 	 * @dev Dispatch a POST request to Hyperbridge
 	 *
-	 * @notice Payment for the request can either be made with the native token or the IIsmpHost.feeToken.
+	 * @notice Payment for the request can be made with either the native token or the IIsmpHost.feeToken.
 	 * If native tokens are supplied, it will perform a swap under the hood using the local uniswap router.
 	 * Will revert if enough native tokens are not provided.
 	 *
@@ -74,7 +74,7 @@ interface IDispatcher {
 	/**
 	 * @dev Dispatch a GET request to Hyperbridge
 	 *
-	 * @notice Payment for the request can either be made with the native token or the IIsmpHost.feeToken.
+	 * @notice Payment for the request can be made with either the native token or the IIsmpHost.feeToken.
 	 * If native tokens are supplied, it will perform a swap under the hood using the local uniswap router.
 	 * Will revert if enough native tokens are not provided.
 	 *
@@ -89,7 +89,7 @@ interface IDispatcher {
 	/**
 	 * @dev Dispatch a POST response to Hyperbridge
 	 *
-	 * @notice Payment for the request can either be made with the native token or the IIsmpHost.feeToken.
+	 * @notice Payment for the request can be made with either the native token or the IIsmpHost.feeToken.
 	 * If native tokens are supplied, it will perform a swap under the hood using the local uniswap router.
 	 * Will revert if enough native tokens are not provided.
 	 *
@@ -106,7 +106,7 @@ interface IDispatcher {
 	 * This is provided for use only on pending requests, such that when they timeout,
 	 * the user can recover the entire relayer fee.
 	 *
-	 * @notice Payment can either be made with the native token or the IIsmpHost.feeToken.
+	 * @notice Payment can be made with either the native token or the IIsmpHost.feeToken.
 	 * If native tokens are supplied, it will perform a swap under the hood using the local uniswap router.
 	 * Will revert if enough native tokens are not provided.
 	 *
@@ -124,7 +124,7 @@ interface IDispatcher {
 	 * This is provided for use only on pending responses, such that when they timeout,
 	 * the user can recover the entire relayer fee.
 	 *
-	 * @notice Payment can either be made with the native token or the IIsmpHost.feeToken.
+	 * @notice Payment can be made with either the native token or the IIsmpHost.feeToken.
 	 * If native tokens are supplied, it will perform a swap under the hood using the local uniswap router.
 	 * Will revert if enough native tokens are not provided.
 	 *
diff --git a/interfaces/IIsmpHost.sol b/interfaces/IIsmpHost.sol
index b847997..fb0df0d 100644
--- a/interfaces/IIsmpHost.sol
+++ b/interfaces/IIsmpHost.sol
@@ -79,7 +79,7 @@ interface IIsmpHost is IDispatcher {
 	 * @param height - state machine height
 	 * @return the state commitment at `height`
 	 */
-	function stateMachineCommitment(StateMachineHeight memory height) external view returns (StateCommitment memory);
+	function stateMachineCommitment(StateMachineHeight memory height) external payable returns (StateCommitment memory);
 
 	/**
 	 * @param height - state machine height