diff --git a/app/src/protyle/wysiwyg/commonHotkey.ts b/app/src/protyle/wysiwyg/commonHotkey.ts
index 983a2bec3..e538140d2 100644
--- a/app/src/protyle/wysiwyg/commonHotkey.ts
+++ b/app/src/protyle/wysiwyg/commonHotkey.ts
@@ -266,17 +266,17 @@ export const duplicateBlock = (nodeElements: Element[], protyle: IProtyle) => {
         }
         const newId = Lute.NewNodeID();
         tempElement.setAttribute("data-node-id", newId);
-        tempElement.setAttribute("data-node-id", newId);
         tempElement.removeAttribute(Constants.CUSTOM_RIFF_DECKS);
         tempElement.classList.remove("protyle-wysiwyg--select", "protyle-wysiwyg--hl");
         tempElement.setAttribute("updated", newId.split("-")[0]);
         tempElement.removeAttribute("refcount");
         tempElement.lastElementChild.querySelector(".protyle-attr--refcount")?.remove();
         tempElement.querySelectorAll("[data-node-id]").forEach(childItem => {
-            childItem.setAttribute("data-node-id", newId);
+            const subNewId = Lute.NewNodeID();
+            childItem.setAttribute("data-node-id", subNewId);
             childItem.removeAttribute(Constants.CUSTOM_RIFF_DECKS);
             childItem.classList.remove("protyle-wysiwyg--select", "protyle-wysiwyg--hl");
-            childItem.setAttribute("updated", newId.split("-")[0]);
+            childItem.setAttribute("updated", subNewId.split("-")[0]);
             childItem.removeAttribute("refcount");
             childItem.lastElementChild.querySelector(".protyle-attr--refcount")?.remove();
         });