diff --git a/src/addons/mod/book/components/index/index.ts b/src/addons/mod/book/components/index/index.ts
index 838f154e8..191a698fa 100644
--- a/src/addons/mod/book/components/index/index.ts
+++ b/src/addons/mod/book/components/index/index.ts
@@ -60,6 +60,13 @@ export class AddonModBookIndexComponent extends CoreCourseModuleMainResourceComp
         ]);
     }
 
+    /**
+     * @inheritdoc
+     */
+    protected async invalidateContent(): Promise<void> {
+        await AddonModBook.invalidateContent(this.module.id, this.courseId);
+    }
+
     /**
      * Load book data.
      *