diff --git a/rowers/models.py b/rowers/models.py
index 6edc4c92..9e156657 100644
--- a/rowers/models.py
+++ b/rowers/models.py
@@ -3873,7 +3873,7 @@ def auto_delete_file_on_delete(sender, instance, **kwargs):
     try:
         dirname = 'media/strokedata_{id}.parquet.gz'.format(id=instance.id)
         os.remove(dirname)
-    except FileNotFoundError:
+    except (FileNotFoundError, IsADirectoryError):
         try:
             shutil.rmtree(dirname)
         except:
diff --git a/rowers/tests/testdata/testdata.tcx.gz b/rowers/tests/testdata/testdata.tcx.gz
index 0fc0e3fd..ef0d837d 100644
Binary files a/rowers/tests/testdata/testdata.tcx.gz and b/rowers/tests/testdata/testdata.tcx.gz differ