diff --git a/electron/main/index.ts b/electron/main/index.ts
index 316baf2..2dcdb3d 100644
--- a/electron/main/index.ts
+++ b/electron/main/index.ts
@@ -78,7 +78,7 @@ if (buildOutput || buildProject || buildHelp) {
           declvar: treeModel.declvar.map((v) => ({ name: v.name, desc: v.desc })),
           subtree: [],
         };
-        b3util.refreshDeclare(treeModel, declare);
+        b3util.refreshDeclare(treeModel.root, treeModel.group, declare);
         if (!b3util.checkNodeData(treeModel?.root)) {
           hasError = true;
         }
diff --git a/src/behavior3 b/src/behavior3
index 13ebbcd..3322396 160000
--- a/src/behavior3
+++ b/src/behavior3
@@ -1 +1 @@
-Subproject commit 13ebbcde9ea69535b94e615e1fde286e15573daa
+Subproject commit 3322396a42af40140bd75a43352fa0c81505967a
diff --git a/src/contexts/workspace-context.ts b/src/contexts/workspace-context.ts
index e0fdfbe..3494f27 100644
--- a/src/contexts/workspace-context.ts
+++ b/src/contexts/workspace-context.ts
@@ -372,7 +372,7 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
             declvar: treeModel.declvar.map((v) => ({ name: v.name, desc: v.desc })),
             subtree: [],
           };
-          b3util.refreshDeclare(treeModel, declare);
+          b3util.refreshDeclare(treeModel.root, treeModel.group, declare);
           if (!b3util.checkNodeData(treeModel?.root)) {
             hasError = true;
           }
@@ -557,7 +557,7 @@ export const useWorkspace = create<WorkspaceStore>((set, get) => ({
     if (!editor) {
       return;
     }
-    b3util.refreshDeclare(editor.data, editor.declare);
+    b3util.refreshDeclare(editor.root, editor.data.group, editor.declare);
   },
 
   save: () => {
diff --git a/src/misc/b3util.ts b/src/misc/b3util.ts
index e658b4e..2c011dc 100644
--- a/src/misc/b3util.ts
+++ b/src/misc/b3util.ts
@@ -857,24 +857,24 @@ export const loadVarDef = (list: ImportDef[]) => {
   return Array.from(all);
 };
 
-const findSubtrees = (data: NodeModel) => {
-  const list: string[] = [];
-  const traverse = (v: NodeModel) => {
-    if (v.path) {
-      list.push(v.path);
-    }
-    if (v.children) {
-      v.children.forEach((child) => traverse(child));
-    }
-  };
-  traverse(data);
+const collectSubtree = (data: TreeGraphData | NodeModel, list: string[] = []) => {
+  if (data.path) {
+    list.push(data.path);
+  }
+  if (data.children) {
+    data.children.forEach((child) => collectSubtree(child, list));
+  }
   return list;
 };
 
-export const refreshDeclare = (tree: TreeModel, declare: FileVarDecl) => {
+export const refreshDeclare = (
+  root: TreeGraphData | NodeModel,
+  group: string[],
+  declare: FileVarDecl
+) => {
   const vars: Set<VarDef> = new Set(declare.declvar.slice());
   parsingStack.length = 0;
-  declare.subtree = findSubtrees(tree.root).map((v) => ({
+  declare.subtree = collectSubtree(root).map((v) => ({
     path: v,
     vars: [],
     depends: [],
@@ -883,6 +883,6 @@ export const refreshDeclare = (tree: TreeModel, declare: FileVarDecl) => {
   loadVarDef(declare.subtree).forEach((v) => {
     vars.add(v);
   });
-  updateUsingGroups(tree.group);
+  updateUsingGroups(group);
   updateUsingVars(Array.from(vars));
 };