diff --git a/ui/app/actions.js b/ui/app/actions.js
index 0aeb802f8..d8b3ed69d 100644
--- a/ui/app/actions.js
+++ b/ui/app/actions.js
@@ -164,6 +164,7 @@ var actions = {
   UPDATE_GAS_PRICE: 'UPDATE_GAS_PRICE',
   UPDATE_GAS_TOTAL: 'UPDATE_GAS_TOTAL',
   UPDATE_SEND_FROM: 'UPDATE_SEND_FROM',
+  UPDATE_SEND_HEX_DATA: 'UPDATE_SEND_HEX_DATA',
   UPDATE_SEND_TOKEN_BALANCE: 'UPDATE_SEND_TOKEN_BALANCE',
   UPDATE_SEND_TO: 'UPDATE_SEND_TO',
   UPDATE_SEND_AMOUNT: 'UPDATE_SEND_AMOUNT',
@@ -183,6 +184,7 @@ var actions = {
   setSendTokenBalance,
   updateSendTokenBalance,
   updateSendFrom,
+  updateSendHexData,
   updateSendTo,
   updateSendAmount,
   updateSendMemo,
@@ -838,6 +840,13 @@ function updateSendFrom (from) {
   }
 }
 
+function updateSendHexData (value) {
+  return {
+    type: actions.UPDATE_SEND_HEX_DATA,
+    value,
+  }
+}
+
 function updateSendTo (to, nickname = '') {
   return {
     type: actions.UPDATE_SEND_TO,
diff --git a/ui/app/reducers/metamask.js b/ui/app/reducers/metamask.js
index 6c8ac9ed7..3f1d3394f 100644
--- a/ui/app/reducers/metamask.js
+++ b/ui/app/reducers/metamask.js
@@ -222,6 +222,14 @@ function reduceMetamask (state, action) {
         },
       })
 
+    case actions.UPDATE_SEND_HEX_DATA:
+      return extend(metamaskState, {
+        send: {
+          ...metamaskState.send,
+          data: action.value,
+        },
+      })
+
     case actions.UPDATE_SEND_FROM:
       return extend(metamaskState, {
         send: {