diff --git a/gdrive/analytics_api.py b/gdrive/analytics_api.py
index 95c36ee..4b1189c 100644
--- a/gdrive/analytics_api.py
+++ b/gdrive/analytics_api.py
@@ -46,11 +46,9 @@ async def run_analytics(background_tasks: BackgroundTasks, req: AnalyticsRequest
         )
 
     except ValueError as err:
-        message = str(err)
         return responses.JSONResponse(
             status_code=422,
-            content="Failed (invalid date parameters): [%s, %s] %s"
-            % (req.startDate, req.endDate, message),
+            content="Failed (invalid date parameters): %s" % (err),
         )
 
 
diff --git a/tests/test_api.py b/tests/test_api.py
index 3359e2c..74cadcf 100644
--- a/tests/test_api.py
+++ b/tests/test_api.py
@@ -7,7 +7,7 @@
 from fastapi import testclient
 
 # pylint: disable=wrong-import-position
-sys.modules["gdrive.client"] = MagicMock()
+sys.modules["gdrive.drive_client"] = MagicMock()
 from gdrive import main
 
 client = testclient.TestClient(main.app)