diff --git a/src/components/sidebar/tabs/NodeLibrarySideBarTab.vue b/src/components/sidebar/tabs/NodeLibrarySideBarTab.vue
index 4925e4945..81d74a14e 100644
--- a/src/components/sidebar/tabs/NodeLibrarySideBarTab.vue
+++ b/src/components/sidebar/tabs/NodeLibrarySideBarTab.vue
@@ -99,9 +99,8 @@ const renderedRoot = computed(() => {
   return fillNodeInfo(root.value)
 })
 const fillNodeInfo = (node: TreeNode): TreeNode => {
-  const isLeaf = node.children === undefined || node.children.length === 0
   const isExpanded = expandedKeys.value[node.key]
-  const icon = isLeaf
+  const icon = node.leaf
     ? 'pi pi-circle-fill'
     : isExpanded
       ? 'pi pi-folder-open'
@@ -112,8 +111,8 @@ const fillNodeInfo = (node: TreeNode): TreeNode => {
     ...node,
     icon,
     children,
-    type: isLeaf ? 'node' : 'folder',
-    totalNodes: isLeaf
+    type: node.leaf ? 'node' : 'folder',
+    totalNodes: node.leaf
       ? 1
       : children.reduce((acc, child) => acc + child.totalNodes, 0)
   }
diff --git a/src/stores/nodeDefStore.ts b/src/stores/nodeDefStore.ts
index 499fb218a..e588fd84b 100644
--- a/src/stores/nodeDefStore.ts
+++ b/src/stores/nodeDefStore.ts
@@ -260,6 +260,7 @@ export const useNodeDefStore = defineStore('nodeDef', {
       const root: TreeNode = {
         key: 'root',
         label: 'Nodes',
+        leaf: false,
         children: []
       }
       for (const nodeDef of Object.values(state.nodeDefsByName)) {
@@ -270,7 +271,7 @@ export const useNodeDefStore = defineStore('nodeDef', {
           key += `/${part}`
           let next = current.children.find((child) => child.label === part)
           if (!next) {
-            next = { key, label: part, children: [] }
+            next = { key, label: part, children: [], leaf: false }
             current.children.push(next)
           }
           current = next
@@ -278,7 +279,8 @@ export const useNodeDefStore = defineStore('nodeDef', {
         current.children.push({
           label: nodeDef.display_name,
           data: nodeDef,
-          key: `${key}/${nodeDef.name}`
+          key: `${key}/${nodeDef.name}`,
+          leaf: true
         })
       }
       return root