diff --git a/kfet/views.py b/kfet/views.py
index 07904aaf..d8d4bd5e 100644
--- a/kfet/views.py
+++ b/kfet/views.py
@@ -142,7 +142,7 @@ def account_form_set_readonly_fields(user_form, cof_form):
 def get_account_create_forms(request=None, username=None, login_clipper=None):
     user = None
     clipper = None
-    if login_clipper:
+    if login_clipper and not username:
         # à partir d'un clipper
         # le user associé à ce clipper ne devrait pas encore exister
         clipper = get_object_or_404(Clipper, username = login_clipper)