diff --git a/src/components/MindMapViewer.vue b/src/components/MindMapViewer.vue
index 2d31465..29d17d2 100644
--- a/src/components/MindMapViewer.vue
+++ b/src/components/MindMapViewer.vue
@@ -103,7 +103,7 @@ const toElixirData = (tree: MindMapTreeNode): MindElixirData => {
     nodeData: {
       id: "root",
       topic: tree.title || "思维导图",
-      children: (tree.children || []).map(toElixirNode),
+      children: (tree.children || []).map(c => toElixirNode(c)),
     },
   } as MindElixirData;
 };