diff --git a/packages/mermaid/src/dagre-wrapper/nodes.js b/packages/mermaid/src/dagre-wrapper/nodes.js
index 52017eeca..0dae4611b 100644
--- a/packages/mermaid/src/dagre-wrapper/nodes.js
+++ b/packages/mermaid/src/dagre-wrapper/nodes.js
@@ -1157,9 +1157,6 @@ export const insertNode = async (elem, node, dir) => {
   if (node.class) {
     el.attr('class', 'node default ' + node.class);
   }
-  // MC Special
-  newEl.attr('data-node', 'true');
-  newEl.attr('data-id', node.id);
 
   nodeElems[node.id] = newEl;