diff --git a/app/src/layout/dock/Backlink.ts b/app/src/layout/dock/Backlink.ts
index fe0207f79..a62586336 100644
--- a/app/src/layout/dock/Backlink.ts
+++ b/app/src/layout/dock/Backlink.ts
@@ -406,6 +406,7 @@ export class Backlink extends Model {
                         breadcrumb: false,
                     }
                 });
+                editor.protyle.notebookId = liElement.getAttribute("data-notebook-id");
                 this.editors.push(editor);
             });
         }
diff --git a/app/src/types/index.d.ts b/app/src/types/index.d.ts
index fe6203c2a..cefe7d9a7 100644
--- a/app/src/types/index.d.ts
+++ b/app/src/types/index.d.ts
@@ -513,6 +513,7 @@ declare interface IFile {
 }
 
 declare interface IBlockTree {
+    box: string,
     nodeType: string,
     hPath: string,
     subType: string,
diff --git a/app/src/util/Tree.ts b/app/src/util/Tree.ts
index e7096ab01..fe092b8d5 100644
--- a/app/src/util/Tree.ts
+++ b/app/src/util/Tree.ts
@@ -76,8 +76,9 @@ export class Tree {
             }
             const hasChild = (item.children && item.children.length > 0) || (item.blocks && item.blocks.length > 0);
             html += `<li class="b3-list-item" 
-${(item.nodeType !== "NodeDocument" && item.type === "backlink") ? 'draggable="true"' : ""}
+${(item.nodeType !== "NodeDocument" && item.type === "backlink") ? 'draggable="true" ' : ""}
 ${item.id ? 'data-node-id="' + item.id + '"' : ""} 
+${item.box ? 'data-notebook-id="' + item.box + '"' : ""} 
 data-treetype="${item.type}" 
 data-type="${item.nodeType}" 
 data-subtype="${item.subType}"