diff --git a/app/core/main.js b/app/core/main.js
index d1a6897..853f846 100644
--- a/app/core/main.js
+++ b/app/core/main.js
@@ -34,6 +34,11 @@ function registerIPCListener() {
     setting.googleTargetLanguage = lang.value;
     fs.writeFile(settingPath, JSON.stringify(setting, null, '  '));
   });
+  ipcMain.on('toggle-always-on-top', () => {
+    setting.alwaysOnTop = !setting.alwaysOnTop;
+    mb.setOption('alwaysOnTop', setting.alwaysOnTop);
+    fs.writeFile(settingPath, JSON.stringify(setting, null, '  '));
+  });
 }
 
 function hotKeysPressed() {
diff --git a/app/setting.json b/app/setting.json
index a069323..127bd15 100644
--- a/app/setting.json
+++ b/app/setting.json
@@ -5,5 +5,6 @@
   "googleSourceLanguage": "auto",
   "googleTargetLanguage": "ko",
   "glosbeSourceLanguage": "eng",
-  "glosbeTargetLanguage": "kor"
-}
\ No newline at end of file
+  "glosbeTargetLanguage": "kor",
+  "alwaysOnTop": false
+}