diff --git a/src/main/updater.ts b/src/main/updater.ts
index ff00c80e9..7785e0eaa 100644
--- a/src/main/updater.ts
+++ b/src/main/updater.ts
@@ -34,7 +34,7 @@ export default class Updater {
 
     autoUpdater.on('download-progress', (progressObj) => {
       this.menubar.tray.setToolTip(
-        `Gitify\nDownloading update: ${progressObj.percent} %`,
+        `Gitify\nDownloading update: ${progressObj.percent.toFixed(2)} %`,
       );
     });