diff --git a/CHANGELOG.md b/CHANGELOG.md
index c90bf35f0..3bd035f27 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,10 @@
+Changes in [0.9.1](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v0.9.1) (2017-11-17)
+================================================================================================
+[Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v0.9.0...v0.9.1)
+
+ * Fix the force TURN option
+   [\#577](https://github.com/matrix-org/matrix-js-sdk/pull/577)
+
 Changes in [0.9.0](https://github.com/matrix-org/matrix-js-sdk/releases/tag/v0.9.0) (2017-11-15)
 ================================================================================================
 [Full Changelog](https://github.com/matrix-org/matrix-js-sdk/compare/v0.9.0-rc.1...v0.9.0)
diff --git a/package.json b/package.json
index d13469c13..0e8597b05 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "matrix-js-sdk",
-  "version": "0.9.0",
+  "version": "0.9.1",
   "description": "Matrix Client-Server SDK for Javascript",
   "main": "index.js",
   "scripts": {
diff --git a/src/client.js b/src/client.js
index 37bca7ba5..6fb280582 100644
--- a/src/client.js
+++ b/src/client.js
@@ -175,6 +175,8 @@ function MatrixClient(opts) {
     this._cryptoStore = opts.cryptoStore;
     this._sessionStore = opts.sessionStore;
 
+    this._forceTURN = opts.forceTURN || false;
+
     if (CRYPTO_ENABLED) {
         this.olmVersion = Crypto.getOlmVersion();
     }
@@ -252,6 +254,16 @@ MatrixClient.prototype.supportsVoip = function() {
     return this._supportsVoip;
 };
 
+/**
+ * Set whether VoIP calls are forced to use only TURN
+ * candidates. This is the same as the forceTURN option
+ * when creating the client.
+ * @param {bool} forceTURN True to force use of TURN servers
+ */
+MatrixClient.prototype.setForceTURN = function(forceTURN) {
+    this._forceTURN = forceTURN;
+};
+
 /**
  * Get the current sync state.
  * @return {?string} the sync state, which may be null.
@@ -3154,7 +3166,9 @@ function setupCallEventHandler(client) {
                 );
             }
 
-            call = webRtcCall.createNewMatrixCall(client, event.getRoomId());
+            call = webRtcCall.createNewMatrixCall(client, event.getRoomId(), {
+                forceTURN: client._forceTURN,
+            });
             if (!call) {
                 console.log(
                     "Incoming call ID " + content.call_id + " but this client " +
diff --git a/src/webrtc/call.js b/src/webrtc/call.js
index a44e18ad6..9cbee4e8b 100644
--- a/src/webrtc/call.js
+++ b/src/webrtc/call.js
@@ -1296,8 +1296,8 @@ module.exports.setVideoInput = function(deviceId) { videoInput = deviceId; };
  * Create a new Matrix call for the browser.
  * @param {MatrixClient} client The client instance to use.
  * @param {string} roomId The room the call is in.
- * @param {Object?} options optional options map.
- * @param {boolean} options.forceTURN whether relay through TURN should be forced.
+ * @param {Object?} options DEPRECATED optional options map.
+ * @param {boolean} options.forceTURN DEPRECATED whether relay through TURN should be forced. This option is deprecated - use opts.forceTURN when creating the matrix client since it's only possible to set this option on outbound calls.
  * @return {MatrixCall} the call or null if the browser doesn't support calling.
  */
 module.exports.createNewMatrixCall = function(client, roomId, options) {
@@ -1350,6 +1350,9 @@ module.exports.createNewMatrixCall = function(client, roomId, options) {
             !webRtc.RtcPeerConnection || !webRtc.getUserMedia) {
         return null; // WebRTC is not supported.
     }
+
+    const optionsForceTURN = options ? options.forceTURN : false;
+
     const opts = {
         webRtc: webRtc,
         client: client,
@@ -1357,7 +1360,7 @@ module.exports.createNewMatrixCall = function(client, roomId, options) {
         roomId: roomId,
         turnServers: client.getTurnServers(),
         // call level options
-        forceTURN: options ? options.forceTURN : false,
+        forceTURN: client._forceTURN || optionsForceTURN,
     };
     return new MatrixCall(opts);
 };