diff --git a/app/scodoc/sco_logos.py b/app/scodoc/sco_logos.py
index 0d73e301..d66646d4 100644
--- a/app/scodoc/sco_logos.py
+++ b/app/scodoc/sco_logos.py
@@ -44,6 +44,7 @@ from werkzeug.utils import secure_filename
 
 from app import Departement, ScoValueError
 from app.scodoc import sco_utils as scu
+from app.scodoc.sco_exceptions import ScoValueError
 from PIL import Image as PILImage
 
 GLOBAL = "_"  # category for server level logos
@@ -136,7 +137,7 @@ def _list_dept_logos(dept_id=None, prefix=scu.LOGO_FILE_PREFIX):
 
 class Logo:
     """Responsable des opérations (select, create), du calcul des chemins et url
-    ainsi que de la récupération des informations sur un logp.
+    ainsi que de la récupération des informations sur un logo.
     Usage:
         logo existant: Logo(<name>, <dept_id>, ...).select() (retourne None si fichier non trouvé)
         logo en création: Logo(<name>, <dept_id>, ...).create(stream)
@@ -197,7 +198,7 @@ class Logo:
     def create(self, stream):
         img_type = guess_image_type(stream)
         if img_type not in scu.LOGOS_IMAGES_ALLOWED_TYPES:
-            abort(400, "type d'image invalide")
+            raise ScoValueError("type d'image invalide")
         self._set_format(img_type)
         self._ensure_directory_exists()
         filename = self.basepath + "." + self.suffix