diff --git a/scipost/forms.py b/scipost/forms.py
index 01da3591d7c282e1593f1170260ffd1191a09c72..0b7bb73ef229655d7483e8dd890d0126d42c6c58 100644
--- a/scipost/forms.py
+++ b/scipost/forms.py
@@ -215,7 +215,7 @@ class VetRegistrationForm(forms.Form):
                                            label='Justification (optional)', required=False)
 
     def promote_to_registered_contributor(self):
-        return bool(self.cleaned_data.get('decision', False))
+        return self.cleaned_data.get('decision') == 'True'
 
 
 class AuthenticationForm(forms.Form):