diff --git a/src/day8/re_frame/trace/events.cljs b/src/day8/re_frame/trace/events.cljs
index 045db0d..3570ac1 100644
--- a/src/day8/re_frame/trace/events.cljs
+++ b/src/day8/re_frame/trace/events.cljs
@@ -81,3 +81,10 @@
   (fn [db [_ paths]]
     (localstorage/save! "app-db-paths" paths)
     (assoc-in db [:app-db :paths] paths)))
+
+(rf/reg-event-db
+  :app-db/remove-path
+  (fn [db [_ path]]
+    (let [new-db (update-in db [:app-db :paths] disj path)]
+      (localstorage/save! "app-db-paths" (get-in new-db [:app-db :paths]))
+      new-db)))
diff --git a/src/day8/re_frame/trace/panels/app_db.cljs b/src/day8/re_frame/trace/panels/app_db.cljs
index f842a49..9b07440 100644
--- a/src/day8/re_frame/trace/panels/app_db.cljs
+++ b/src/day8/re_frame/trace/panels/app_db.cljs
@@ -144,7 +144,7 @@
                    [:div.subtree
                     [subtree
                      (get-in @data path)
-                     [:button.subtree-button {:on-click #(swap! subtree-paths disj path)}
+                     [:button.subtree-button {:on-click #(rf/dispatch [:app-db/remove-path path])}
                       [:span.subtree-button-string
                        (str path)]]]]])
                 @subtree-paths))]