diff --git a/src/foundry/client/data/documents/folder.d.mts b/src/foundry/client/data/documents/folder.d.mts
index 8576fbb04..fac9100d1 100644
--- a/src/foundry/client/data/documents/folder.d.mts
+++ b/src/foundry/client/data/documents/folder.d.mts
@@ -131,8 +131,11 @@ declare global {
      * @param options - Additional options passed to the Dialog.prompt method
      *                  (default: `{}`)
      * @returns A Promise which resolves or rejects once the dialog has been submitted or closed
+     *
+     * @remarks - Foundry documents `pack` as just being a `string` but it is unused and Foundry itself
+     * calls `exportDialog` with `null`.
      */
-    exportDialog(pack: string, options?: DialogOptions): Promise<void>;
+    exportDialog(pack: string | null, options?: DialogOptions): Promise<void>;
 
     /**
      * Get the Folder documents which are sub-folders of the current folder, either direct children or recursively.