diff --git a/src/main/index.js b/src/main/index.js
index 8bf74457be..6029af3517 100644
--- a/src/main/index.js
+++ b/src/main/index.js
@@ -539,6 +539,7 @@ function createMainWindow(openDialog, playlistId) {
 ['left-drag', 'left-up'].forEach((channel) => {
   mouse.on(channel, (...args) => {
     if (!mainWindow || mainWindow.webContents.isDestroyed()) return;
+    if (mainWindow.isMaximized()) return;
     mainWindow.webContents.send(`mouse-${channel}`, ...args);
   });
 });
diff --git a/src/renderer/components/Titlebar.vue b/src/renderer/components/Titlebar.vue
index a694511699..6d4b859cb8 100644
--- a/src/renderer/components/Titlebar.vue
+++ b/src/renderer/components/Titlebar.vue
@@ -215,7 +215,8 @@ export default {
       this.$event.emit('side-bar-mouseup');
     },
     handleDbClick() {
-      if (!this.isMaximized) {
+      const browserWindow = this.$electron.remote.getCurrentWindow();
+      if (!browserWindow.isMaximized()) {
         this.$electron.ipcRenderer.send('callMainWindowMethod', 'maximize');
       } else {
         this.$electron.ipcRenderer.send('callMainWindowMethod', 'unmaximize');