diff --git a/js/app.js b/js/app.js
index c6803673..c1dd2e67 100644
--- a/js/app.js
+++ b/js/app.js
@@ -394,6 +394,9 @@ class Application {
     if (this.videoModal) {
       this.videoModal.close();
     }
+    if (this.reactionController) {
+      this.reactionController.unsubscribe();
+    }
     // Also clear the active modal state if tracked elsewhere, though videoModal.close() usually handles it.
   }