diff --git a/CHANGELOG.md b/CHANGELOG.md
index a63a8604a..a58180da9 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -5,6 +5,10 @@
 - Add info on token contract addresses.
 - Add validation preventing users from inputting their own addresses as token tracking addresses.
 
+## 3.9.13 2017-9-8
+
+- Changed the way we initialize the inpage provider to fix a bug affecting some developers.
+
 ## 3.9.12 2017-9-6
 
 - Fix bug that prevented Web3 1.0 compatibility
diff --git a/app/manifest.json b/app/manifest.json
index 256737c89..51e82d6e3 100644
--- a/app/manifest.json
+++ b/app/manifest.json
@@ -1,7 +1,7 @@
 {
   "name": "MetaMask",
   "short_name": "Metamask",
-  "version": "3.9.12",
+  "version": "3.9.13",
   "manifest_version": 2,
   "author": "https://metamask.io",
   "description": "Ethereum Browser Extension",
diff --git a/app/scripts/lib/inpage-provider.js b/app/scripts/lib/inpage-provider.js
index c63af06dc..13888dc67 100644
--- a/app/scripts/lib/inpage-provider.js
+++ b/app/scripts/lib/inpage-provider.js
@@ -40,31 +40,37 @@ function MetamaskInpageProvider (connectionStream) {
   // start and stop polling to unblock first block lock
 
   self.idMap = {}
-  // handle sendAsync requests via asyncProvider
-  self.sendAsync = function (payload, cb) {
-    // rewrite request ids
-    var request = eachJsonMessage(payload, (_message) => {
-      const message = Object.assign({}, _message)
-      const newId = createRandomId()
-      self.idMap[newId] = message.id
-      message.id = newId
+}
+
+// handle sendAsync requests via asyncProvider
+// also remap ids inbound and outbound
+MetamaskInpageProvider.prototype.sendAsync = function (payload, cb) {
+  const self = this
+
+  // rewrite request ids
+  const request = eachJsonMessage(payload, (_message) => {
+    const message = Object.assign({}, _message)
+    const newId = createRandomId()
+    self.idMap[newId] = message.id
+    message.id = newId
+    return message
+  })
+
+  // forward to asyncProvider
+  self.asyncProvider.sendAsync(request, (err, _res) => {
+    if (err) return cb(err)
+    // transform messages to original ids
+    const res = eachJsonMessage(_res, (message) => {
+      const oldId = self.idMap[message.id]
+      delete self.idMap[message.id]
+      message.id = oldId
       return message
     })
-    // forward to asyncProvider
-    asyncProvider.sendAsync(request, function (err, res) {
-      if (err) return cb(err)
-      // transform messages to original ids
-      eachJsonMessage(res, (message) => {
-        var oldId = self.idMap[message.id]
-        delete self.idMap[message.id]
-        message.id = oldId
-        return message
-      })
-      cb(null, res)
-    })
-  }
+    cb(null, res)
+  })
 }
 
+
 MetamaskInpageProvider.prototype.send = function (payload) {
   const self = this
 
@@ -110,10 +116,6 @@ MetamaskInpageProvider.prototype.send = function (payload) {
   }
 }
 
-MetamaskInpageProvider.prototype.sendAsync = function () {
-  throw new Error('MetamaskInpageProvider - sendAsync not overwritten')
-}
-
 MetamaskInpageProvider.prototype.isConnected = function () {
   return true
 }