diff --git a/senju/image_reco.py b/senju/image_reco.py
index 66ddafe..49d2db8 100644
--- a/senju/image_reco.py
+++ b/senju/image_reco.py
@@ -59,7 +59,7 @@ class ImageDescriptionGenerator:
         }
 
 
-g_descriptor:  ImageDescriptionGenerator = ImageDescriptionGenerator()
+g_descriptor: ImageDescriptionGenerator = ImageDescriptionGenerator()
 
 
 def gen_response(image_data) -> dict: