diff --git a/pkg/thread.py b/pkg/thread.py
index fae34b9..e46f19f 100644
--- a/pkg/thread.py
+++ b/pkg/thread.py
@@ -28,6 +28,8 @@ def download_tile(task):
                 if not is_png(output_path):
                     tqdm.write(f'PNG conversion for {output_path} failed. Deleting and retrying...')
                     corrupted_image = True
+                else:
+                    return row, col, 'exist'
             elif not valid_png_file:
                 # We will re-download the image. Don't need to delete it, just overwrite it.
                 # del_path(output_path)