diff --git a/osm_vc63/errors.py b/osm_vc63/errors.py
index 11dd585..07f40f7 100644
--- a/osm_vc63/errors.py
+++ b/osm_vc63/errors.py
@@ -1,7 +1,10 @@
 #!/usr/bin/env python3
+"""Errors module"""
 
 
-class Api_error(Exception):
+class ApiError(Exception):
+    """Api exception"""
+
     def __init__(self, http_code, message="erreur appel API"):
         self.http_code = http_code
         self.message = message
@@ -11,9 +14,13 @@ class Api_error(Exception):
         return f"{self.http_code} -> {self.message}"
 
 
-class Overpass_error(Api_error):
+class OverpassError(ApiError):
+    """Overpass exception"""
+
     pass
 
 
-class Geo_api_error(Api_error):
+class GeoApiError(ApiError):
+    """GeoApi exception"""
+
     pass
diff --git a/osm_vc63/utils.py b/osm_vc63/utils.py
index 5943d8a..b4def3a 100644
--- a/osm_vc63/utils.py
+++ b/osm_vc63/utils.py
@@ -119,7 +119,7 @@ class Utils:
         response = requests.get(self.overpass_url, params={"data": overpass_query})
 
         if response.status_code != 200:
-            raise errors.Overpass_error(response.status_code)
+            raise errors.OverpassError(response.status_code)
 
         return response.json()
 
@@ -131,7 +131,7 @@ class Utils:
         response = requests.get(url, params={"lon": str(lon), "lat": str(lat)})
 
         if response.status_code != 200:
-            raise errors.Geo_api_error(response.status_code)
+            raise errors.GeoApiError(response.status_code)
 
         return response.json()
 
diff --git a/recup_donnees_OSM_Overpass.py b/recup_donnees_OSM_Overpass.py
index c77d34b..5f46281 100644
--- a/recup_donnees_OSM_Overpass.py
+++ b/recup_donnees_OSM_Overpass.py
@@ -147,7 +147,7 @@ def main():
                     req.nom, req.critere, aire_de_recherche, req.champs
                 )
                 break
-            except errors.Api_error:
+            except errors.ApiError:
 
                 if nb_essai == max_retry:
                     print("trop d'erreurs d'API - abandon")