diff --git a/main.js b/main.js
index eae5ab7..e925161 100644
--- a/main.js
+++ b/main.js
@@ -290,7 +290,6 @@ if (!singleInstanceLock) {
     if (!mainWindow) {
       return;
     }
-    dialerReady = false;
     numberToDialer = null;
     mainWindow.close();
   });
diff --git a/package.json b/package.json
index bbe4ff4..dde0ab5 100644
--- a/package.json
+++ b/package.json
@@ -1,7 +1,7 @@
 {
   "name": "ringcentral-embeddable-voice-app",
   "description": "A RingCentral phone desktop client, built with RingCentral Embeddable and Electron",
-  "version": "0.3.0",
+  "version": "0.3.1",
   "main": "main.js",
   "license": "MIT",
   "author": {