diff --git a/accounts/forms.py b/accounts/forms.py
index b033330a..4a140777 100644
--- a/accounts/forms.py
+++ b/accounts/forms.py
@@ -251,6 +251,8 @@ class RegistrationCompleteForm(forms.ModelForm):
             User.objects.get(id=int(url))
         except (User.DoesNotExist,):
             return url
+        except (ValueError, ):
+            pass
         raise forms.ValidationError(_(u'Пользователь с таким url уже существует'))