diff --git a/profile/forms.py b/profile/forms.py
index 76fb63c308..6c6f2e0bf5 100644
--- a/profile/forms.py
+++ b/profile/forms.py
@@ -2,15 +2,7 @@
 from django import forms
 from django.utils.translation import ugettext_lazy as _
 
-from seahub.utils import validate_group_name
-
 class ProfileForm(forms.Form):
     nickname = forms.CharField(max_length=64, required=False)
     intro = forms.CharField(max_length=256, required=False)
 
-    def clean_nickname(self):
-        nickname = self.cleaned_data['nickname']
-        if validate_group_name(nickname):
-            return nickname
-        else:
-            raise forms.ValidationError(_(u'Nickname can only contain characters, numbers or underscore.'))