diff --git a/docs/SETUP.md b/docs/SETUP.md
index 1b9702b..f565daa 100644
--- a/docs/SETUP.md
+++ b/docs/SETUP.md
@@ -12,7 +12,10 @@ Setup
 
 ![record toggle](images/record-toggle.png)
 
-4. Setup Charles' [SSL certificate](https://www.charlesproxy.com/documentation/using-charles/ssl-certificates/) for your phone.
+4. Setup Charles' [SSL certificate](https://www.charlesproxy.com/documentation/using-charles/ssl-certificates/) for your phone. If the app throws network errors, you may have to take an additional step to fully trust the Charles SSL certificate: 
+
+    `Settings > General > About > Certificate Trust Testings`
+
 5. Proxy your phone's traffic through Charles (IP is the IP of your computer):
 
 ![proxy config](images/proxy-config.png)
diff --git a/index.js b/index.js
index 1872781..e41ee5d 100644
--- a/index.js
+++ b/index.js
@@ -238,7 +238,7 @@ TuyaDevice.prototype.set = function (options) {
   if (options.dps === undefined) {
     thisRequest.dps = {1: options.set};
   } else {
-    thisRequest.dps[options.dps.toString()] = options.set;
+    thisRequest.dps = {[options.dps.toString()]: options.set};
   }
 
   debug('Payload: ');