diff --git a/batime@martin.zurowietz.de/metadata.json b/batime@martin.zurowietz.de/metadata.json
index 00022d1..5de186a 100644
--- a/batime@martin.zurowietz.de/metadata.json
+++ b/batime@martin.zurowietz.de/metadata.json
@@ -1,6 +1,6 @@
 
 {
-  "shell-version": ["3.36"],
+  "shell-version": ["40"],
   "uuid": "batime@martin.zurowietz.de",
   "url": "https://github.com/mzur/gnome-shell-batime",
   "settings-schema": "org.gnome.shell.extensions.batime",
diff --git a/batime@martin.zurowietz.de/power.js b/batime@martin.zurowietz.de/power.js
index 7e271b9..a6cd96f 100644
--- a/batime@martin.zurowietz.de/power.js
+++ b/batime@martin.zurowietz.de/power.js
@@ -36,6 +36,6 @@ var Indicator = GObject.registerClass(
 
    _sync() {
       super._sync();
-      this._percentageLabel.clutter_text.set_markup('<span size="smaller">' + this._getTime() + '</span>');
+      this._percentageLabel.text = this._getTime();
    }
 });