diff --git a/COMPONENT_INDEX.md b/COMPONENT_INDEX.md
index f2eb8245..480bb450 100644
--- a/COMPONENT_INDEX.md
+++ b/COMPONENT_INDEX.md
@@ -4705,7 +4705,7 @@ export interface TreeNode {
 | selectedIds   | No       | <code>let</code>      | Yes      | <code>ReadonlyArray<TreeNodeId></code>                        | <code>[]</code>                                                                                                                                                                                                                                                                                                                                                                                   | Set the node ids to be selected                                                                      |
 | activeId      | No       | <code>let</code>      | Yes      | <code>TreeNodeId</code>                                       | <code>""</code>                                                                                                                                                                                                                                                                                                                                                                                   | Set the current active node id<br />Only one node can be active                                      |
 | nodes         | No       | <code>let</code>      | Yes      | <code>Array<TreeNode></code>                                  | <code>[]</code>                                                                                                                                                                                                                                                                                                                                                                                   | Provide a nested array of nodes to render                                                            |
-| nodesFlat     | No       | <code>let</code>      | No       | <code>Array<TreeNode></code>                                  | <code>[]</code>                                                                                                                                                                                                                                                                                                                                                                                   | Provide a flat array of nodes to render                                                              |
+| nodesFlat     | No       | <code>let</code>      | No       | <code>Array<TreeNode & {pid?: any}></code>                    | <code>[]</code>                                                                                                                                                                                                                                                                                                                                                                                   | Provide a flat array of nodes to render                                                              |
 | size          | No       | <code>let</code>      | No       | <code>"default" &#124; "compact"</code>                       | <code>"default"</code>                                                                                                                                                                                                                                                                                                                                                                            | Specify the TreeView size                                                                            |
 | labelText     | No       | <code>let</code>      | No       | <code>string</code>                                           | <code>""</code>                                                                                                                                                                                                                                                                                                                                                                                   | Specify the label text                                                                               |
 | hideLabel     | No       | <code>let</code>      | No       | <code>boolean</code>                                          | <code>false</code>                                                                                                                                                                                                                                                                                                                                                                                | Set to `true` to visually hide the label text                                                        |
diff --git a/docs/src/COMPONENT_API.json b/docs/src/COMPONENT_API.json
index cdd9b20e..005acb76 100644
--- a/docs/src/COMPONENT_API.json
+++ b/docs/src/COMPONENT_API.json
@@ -17783,7 +17783,7 @@
           "name": "nodesFlat",
           "kind": "let",
           "description": "Provide a flat array of nodes to render",
-          "type": "Array<TreeNode>",
+          "type": "Array<TreeNode & {pid?: any}>",
           "value": "[]",
           "isFunction": false,
           "isFunctionDeclaration": false,
diff --git a/types/TreeView/TreeView.svelte.d.ts b/types/TreeView/TreeView.svelte.d.ts
index 7a013fa9..bfca22a4 100644
--- a/types/TreeView/TreeView.svelte.d.ts
+++ b/types/TreeView/TreeView.svelte.d.ts
@@ -24,7 +24,7 @@ type $Props = {
    * Provide a flat array of nodes to render
    * @default []
    */
-  nodesFlat?: Array<TreeNode>;
+  nodesFlat?: Array<TreeNode & { pid?: any }>;
 
   /**
    * Set the current active node id