diff --git a/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx b/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
index 3042fa72..fd371623 100644
--- a/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
+++ b/wolai-frontend/src/components/editor/blocks/MindmapBlock.tsx
@@ -179,7 +179,6 @@ const MindmapBlockView = ({
         { default: OuterFrame },
         { default: Exporter },
         { default: Formula },
-        { default: FormulaStyle },
         { default: RichText },
         { default: MiniMapPlugin },
         { default: Select },
@@ -192,7 +191,6 @@ const MindmapBlockView = ({
         import("simple-mind-map/src/plugins/OuterFrame.js"),
         import("simple-mind-map/src/plugins/Export.js"),
         import("simple-mind-map/src/plugins/Formula.js"),
-        import("simple-mind-map/src/plugins/FormulaStyle.js"),
         import("simple-mind-map/src/plugins/RichText.js"),
         import("simple-mind-map/src/plugins/MiniMap.js"),
         import("simple-mind-map/src/plugins/Select.js"),
@@ -206,7 +204,6 @@ const MindmapBlockView = ({
         { name: "OuterFrame", plugin: OuterFrame },
         { name: "Export", plugin: Exporter },
         { name: "Formula", plugin: Formula },
-        { name: "FormulaStyle", plugin: FormulaStyle },
         { name: "RichText", plugin: RichText },
         { name: "MiniMap", plugin: MiniMapPlugin },
         { name: "Select", plugin: Select },
@@ -321,19 +318,19 @@ const MindmapBlockView = ({
     window.setTimeout(() => mindmap.execCommand("REMOVE_NODE"), 0);
   };
   const handleSummary = () => {
-    const mm = ensureActiveBefore();
+    const mm = ensureActiveBefore(mindmap);
     if (mm) {
       window.setTimeout(() => mm.execCommand("ADD_GENERALIZATION"), 0);
     }
   };
   const handleAssociativeLine = () => {
-    const mm = ensureActiveBefore();
+    const mm = ensureActiveBefore(mindmap);
     if (mm) {
       window.setTimeout(() => mm.execCommand("ADD_ASSOCIATIVE_LINE"), 0);
     }
   };
   const handleOuterFrame = () => {
-    const mm = ensureActiveBefore();
+    const mm = ensureActiveBefore(mindmap);
     if (mm) {
       window.setTimeout(() => mm.execCommand("ADD_OUTER_FRAME"), 0);
     }