diff --git a/web/template/home.gohtml b/web/template/home.gohtml
index 86f2a9c84..f01ccacf2 100755
--- a/web/template/home.gohtml
+++ b/web/template/home.gohtml
@@ -365,7 +365,7 @@
                                                 <template x-if="livestream.InLectureHall()">
                                                     <a class="tum-live-badge bg-black"
                                                        target="_blank"
-                                                       :href="livestream.LectureHall.ExternalURL">s.
+                                                       :href="livestream.LectureHall.ExternalURL">
                                                         <i class="fas fa-location-pin"></i>
                                                         <span x-text="livestream.LectureHall.Name"></span>
                                                     </a>
@@ -567,9 +567,7 @@
                         </section>
                     </template>
                     <template x-if="plannedStreams.hasElements()">
-                        <section x-data="{isLectureHallValid(lectureHall) {const regex = /^\d{4}\.[A-Z0-9]{2}\.[A-Z0-9]{3,4}$/;
-                            return regex.test(lectureHall);}}"
-                                 class="tum-live-course-view-item px-3">
+                        <section class="tum-live-course-view-item px-3">
                             <header>
                                 <h3>Scheduled</h3>
                             </header>
@@ -592,7 +590,7 @@
                                                         <span x-text="`${s.TimeOfStart()} - ${s.TimeOfEnd()}`"></span>
                                                     </div>
                                                     <h4 x-text="s.Name" class="font-semibold text-1"></h4>
-                                                    <template x-if="isLectureHallValid(s.LectureHall)">
+                                                    <template x-if="window.isLectureHallValid(s.LectureHall)">
                                                         <a :href="`https://nav.tum.de/room/${s.LectureHall}`" class="no-underline" x-text="s.LectureHall"></a>
                                                     </template>
                                                 </div>
diff --git a/web/ts/entry/home.ts b/web/ts/entry/home.ts
index 9aacde30f..02ce8cb5c 100644
--- a/web/ts/entry/home.ts
+++ b/web/ts/entry/home.ts
@@ -4,3 +4,4 @@ export * from "../components/livestreams";
 export * from "../components/course";
 export * from "../components/servernotifications";
 export * from "../components/main";
+export * from "../utilities/lecture-hall-validator"
diff --git a/web/ts/utilities/lecture-hall-validator.ts b/web/ts/utilities/lecture-hall-validator.ts
new file mode 100644
index 000000000..84aecb01d
--- /dev/null
+++ b/web/ts/utilities/lecture-hall-validator.ts
@@ -0,0 +1,6 @@
+export function isLectureHallValid(lectureHall: string): boolean {
+    const regex = /^\d{4}\.[A-Z0-9]{2}\.[A-Z0-9]{3,4}$/;
+    return regex.test(lectureHall);
+}
+
+(window as any).isLectureHallValid = isLectureHallValid;
\ No newline at end of file