diff --git a/src/main/index.js b/src/main/index.js
index a4c7c072..614e13ba 100644
--- a/src/main/index.js
+++ b/src/main/index.js
@@ -423,7 +423,7 @@ function runApp() {
   })
 
   app.on('activate', () => {
-    if (mainWindow === null) {
+    if (mainWindow === null || mainWindow === undefined) {
       createWindow()
     }
   })