diff --git a/academyFIVE__AddSelectBox.user.js b/academyFIVE__AddSelectBox.user.js
index 592b11b..e1997f8 100644
--- a/academyFIVE__AddSelectBox.user.js
+++ b/academyFIVE__AddSelectBox.user.js
@@ -17,7 +17,7 @@
     
     function addSelectButtons() {
         // Prüfe ob wir auf der richtigen Seite sind
-        if (!window.location.href.includes('/course/planning-group/list') | !window.location.href.includes('/course/list')) {
+        if (!window.location.href.includes('/course/planning-group/list') & !window.location.href.includes('/course/list')) {
             return;
         }