diff --git a/src/pages/overall/overall-course/overall-course.ts b/src/pages/overall/overall-course/overall-course.ts
index 871d005..45f14fd 100644
--- a/src/pages/overall/overall-course/overall-course.ts
+++ b/src/pages/overall/overall-course/overall-course.ts
@@ -9,4 +9,12 @@ export default class OverallCourse extends Vue
 {
     // @ts-ignore
     @Prop({required: true}) course: Course;
+
+    /**
+     * Count the number of unread assignments
+     */
+    countUnread(): number
+    {
+        return this.course.assignments.filter(a => a.unread).length;
+    }
 }