diff --git a/idhub_auth/forms.py b/idhub_auth/forms.py
index d603807..f292182 100644
--- a/idhub_auth/forms.py
+++ b/idhub_auth/forms.py
@@ -15,7 +15,7 @@ class ProfileForm(forms.ModelForm):
 
     def clean_first_name(self):
         first_name = super().clean()['first_name']
-        match = r'^[a-zA-ZäöüßÄÖÜáéíóúàèìòùÀÈÌÒÙÁÉÍÓÚßñÑ\s\'-]+'
+        match = r'^[a-zA-ZäöüßÄÖÜáéíóúàèìòùÀÈÌÒÙÁÉÍÓÚßñÑçÇ\s\'-]+'
         if not re.match(match, first_name):
             txt = _("The string must contain only characters and spaces")
             raise forms.ValidationError(txt)
@@ -24,7 +24,7 @@ class ProfileForm(forms.ModelForm):
 
     def clean_last_name(self):
         last_name = super().clean()['last_name']
-        match = r'^[a-zA-ZäöüßÄÖÜáéíóúàèìòùÀÈÌÒÙÁÉÍÓÚßñÑ\s\'-]+'
+        match = r'^[a-zA-ZäöüßÄÖÜáéíóúàèìòùÀÈÌÒÙÁÉÍÓÚßñÑçÇ\s\'-]+'
         if not re.match(match, last_name):
             txt = _("The string must contain only characters and spaces")
             raise forms.ValidationError(txt)