diff --git a/apps/client/src/translations/en/translation.json b/apps/client/src/translations/en/translation.json
index 457f01eb6..33e69ba0f 100644
--- a/apps/client/src/translations/en/translation.json
+++ b/apps/client/src/translations/en/translation.json
@@ -1772,7 +1772,8 @@
     "clone-indicator-tooltip": "This note has {{- count}} parents: {{- parents}}",
     "clone-indicator-tooltip-single": "This note is cloned (1 additional parent: {{- parent}})",
     "shared-indicator-tooltip": "This note is shared publicly",
-    "shared-indicator-tooltip-with-url": "This note is shared publicly at: {{- url}}"
+    "shared-indicator-tooltip-with-url": "This note is shared publicly at: {{- url}}",
+    "subtree-hidden-tooltip": "{{count}} child notes that are hidden from the tree"
   },
   "title_bar_buttons": {
     "window-on-top": "Keep Window on Top"
diff --git a/apps/client/src/widgets/note_tree.ts b/apps/client/src/widgets/note_tree.ts
index 29ddd1070..470f19dd0 100644
--- a/apps/client/src/widgets/note_tree.ts
+++ b/apps/client/src/widgets/note_tree.ts
@@ -1891,8 +1891,10 @@ function buildEnhanceTitle() {
         }
 
         // Add a badge with the number of items if it hides children.
-        if (isSubtreeHidden) {
-            const $badge = $(`<span class="note-indicator-icon subtree-hidden-badge">${note.getChildNoteIds().length}</span>`);
+        const count = note.getChildNoteIds().length;
+        if (isSubtreeHidden && count > 0) {
+            const $badge = $(`<span class="note-indicator-icon subtree-hidden-badge">${count}</span>`);
+            $badge.attr("title", t("note_tree.subtree-hidden-tooltip", { count }));
             $span.find(".fancytree-title").append($badge);
         }
     };