diff --git a/orchestra/contrib/saas/forms.py b/orchestra/contrib/saas/forms.py
index a1d9970f..c21fcf64 100644
--- a/orchestra/contrib/saas/forms.py
+++ b/orchestra/contrib/saas/forms.py
@@ -12,6 +12,7 @@ from orchestra.utils.python import random_ascii
 
 class SaaSBaseForm(PluginDataForm):
     site_url = forms.CharField(label=_("Site URL"), widget=SpanWidget(), required=False)
+    target_server = forms.CharField(required=False, widget=forms.HiddenInput())
     
     class Meta:
         exclude = ('database',)