diff --git a/pillar/web/users/forms.py b/pillar/web/users/forms.py
index fa0fd108..316813c9 100644
--- a/pillar/web/users/forms.py
+++ b/pillar/web/users/forms.py
@@ -46,7 +46,7 @@ class UserProfileForm(Form):
                 api=api)
 
             if username:
-                self.username.errors.append('Sorry, username already exists!')
+                self.username.errors.append('Sorry, this username is already taken.')
                 return False
 
         self.user = user