diff --git a/client/src/api/schema/schema.ts b/client/src/api/schema/schema.ts
index 826aa9070b13..0bdc84809f33 100644
--- a/client/src/api/schema/schema.ts
+++ b/client/src/api/schema/schema.ts
@@ -19607,7 +19607,7 @@ export interface operations {
         /** Import a data manager bundle */
         parameters?: {
             query?: {
-                tool_data_file_path?: Record<string, never>;
+                tool_data_file_path?: string | null;
             };
             /** @description The user ID that will be used to effectively make this API call. Only admins and designated users can make API calls on behalf of other users. */
             header?: {
diff --git a/lib/galaxy/webapps/galaxy/api/tool_data.py b/lib/galaxy/webapps/galaxy/api/tool_data.py
index cf758dc1e135..953c2909e510 100644
--- a/lib/galaxy/webapps/galaxy/api/tool_data.py
+++ b/lib/galaxy/webapps/galaxy/api/tool_data.py
@@ -1,3 +1,5 @@
+from typing import Optional
+
 from fastapi import (
     Body,
     Path,
@@ -66,7 +68,7 @@ async def index(self) -> ToolDataEntryList:
         require_admin=True,
     )
     async def create(
-        self, tool_data_file_path=None, import_bundle_model: ImportToolDataBundle = Body(...)
+        self, tool_data_file_path: Optional[str] = None, import_bundle_model: ImportToolDataBundle = Body(...)
     ) -> AsyncTaskResultSummary:
         source = import_bundle_model.source
         result = import_data_bundle.delay(tool_data_file_path=tool_data_file_path, **source.model_dump())