diff --git a/airscore/public/forms.py b/airscore/public/forms.py
index 06a37c65..d673f68e 100644
--- a/airscore/public/forms.py
+++ b/airscore/public/forms.py
@@ -17,7 +17,7 @@ def __init__(self, *args, **kwargs):
         super(LoginForm, self).__init__(*args, **kwargs)
         self.user = None
 
-    def validate(self):
+    def validate(self, extra_validators=None):
         """Validate the form."""
         from Defines import ADMIN_DB
         initial_validation = super(LoginForm, self).validate()
diff --git a/airscore/user/forms.py b/airscore/user/forms.py
index 32780bd4..3282fe6a 100644
--- a/airscore/user/forms.py
+++ b/airscore/user/forms.py
@@ -59,7 +59,7 @@ def __init__(self, *args, **kwargs):
         super(RegisterForm, self).__init__(*args, **kwargs)
         self.user = None
 
-    def validate(self):
+    def validate(self, extra_validators=None):
         """Validate the form."""
         initial_validation = super(RegisterForm, self).validate()
         if not initial_validation:
@@ -543,7 +543,7 @@ class UserForm(FlaskForm):
 
     submit = SubmitField('Save')
 
-    def validate(self):
+    def validate(self, extra_validators=None):
         """Validate the form."""
         initial_validation = super(UserForm, self).validate()
         if not initial_validation: