diff --git a/grandlyon/scripts/copy-roles.py b/grandlyon/scripts/copy-roles.py
index aa3e0b4..d9fd2c7 100644
--- a/grandlyon/scripts/copy-roles.py
+++ b/grandlyon/scripts/copy-roles.py
@@ -20,7 +20,10 @@ for role in Role.objects.filter(ou=ou_src):
     if role.slug.startswith('_'):
         continue
     new_name = role.name.replace(name_src, name_dst).replace(name_src.lower(), name_dst.lower())
-    new_role, created = Role.objects.get_or_create(ou=ou, name=new_name)
+    kwargs = {'ou': ou, 'name': new_name}
+    if name_dst.lower() not in new_name.lower():
+        kwargs['slug'] = role.slug
+    new_role, created = Role.objects.get_or_create(**kwargs)
     mapping[role.uuid] = {name_dst: new_role.uuid}
     if new_name == 'Agent':
         agent_role = new_role