diff --git a/cfp/forms.py b/cfp/forms.py
index 364102f..963ca8c 100644
--- a/cfp/forms.py
+++ b/cfp/forms.py
@@ -33,7 +33,16 @@ class UsersWidget(ModelSelect2MultipleWidget):
     search_fields = [ '%s__icontains' % field for field in UserAdmin.search_fields ]
 
 
-ConferenceForm = modelform_factory(Conference, fields=['name', 'home', 'venue', 'city', 'contact_email', 'staff',], widgets={'staff': UsersWidget(),})
+class ConferenceForm(forms.ModelForm):
+    class Meta:
+        model = Conference
+        fields = ['name', 'home', 'venue', 'city', 'contact_email', 'staff',]
+        widgets = {
+            'staff': UsersWidget(),
+        }
+        help_texts = {
+            'staff': _('New staff members will be informed of their new position by e-mail.'),
+        }
 
 
 class CreateUserForm(forms.ModelForm):
diff --git a/cfp/views.py b/cfp/views.py
index aea9241..8a7740e 100644
--- a/cfp/views.py
+++ b/cfp/views.py
@@ -203,8 +203,35 @@ def conference(request, conference):
     form = ConferenceForm(request.POST or None, instance=conference)
 
     if request.method == 'POST' and form.is_valid():
-        # TODO mail notifications to new staff members
-        form.save()
+        old_staff = set(conference.staff.all())
+        new_conference = form.save()
+        new_staff = set(new_conference.staff.all())
+        added_staff = new_staff - old_staff
+        protocol = 'http' if request.is_secure() else 'http'
+        base_url = protocol+'://'+conference.site.domain
+        url_login = base_url + reverse('login')
+        url_password_reset = base_url + reverse('password_reset')
+        msg_title = _('[{}] You have been added to the staff team').format(conference.name)
+        msg_body_template = _("""Hi {},
+
+You have been added to the staff team.
+
+You can now:
+- login: {}
+- reset your password: {}
+
+{}
+
+""")
+        for user in added_staff:
+            msg_body = msg_body_template.format(user.get_full_name(), url_login, url_password_reset, conference.name)
+            send_mail(
+                msg_title,
+                msg_body,
+                conference.from_email(),
+                [user.email],
+                fail_silently=False,
+            )
         messages.success(request, _('Modifications successfully saved.'))
         return redirect(reverse('conference'))
 
diff --git a/locale/fr/LC_MESSAGES/django.mo b/locale/fr/LC_MESSAGES/django.mo
index 111f7dc..d177466 100644
Binary files a/locale/fr/LC_MESSAGES/django.mo and b/locale/fr/LC_MESSAGES/django.mo differ
diff --git a/locale/fr/LC_MESSAGES/django.po b/locale/fr/LC_MESSAGES/django.po
index 294880a..83b3c40 100644
--- a/locale/fr/LC_MESSAGES/django.po
+++ b/locale/fr/LC_MESSAGES/django.po
@@ -7,7 +7,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: PACKAGE VERSION\n"
 "Report-Msgid-Bugs-To: \n"
-"POT-Creation-Date: 2017-07-31 21:38+0000\n"
+"POT-Creation-Date: 2017-07-31 23:09+0000\n"
 "PO-Revision-Date: YEAR-MO-DA HO:MI+ZONE\n"
 "Last-Translator: FULL NAME <EMAIL@ADDRESS>\n"
 "Language-Team: LANGUAGE <LL@li.org>\n"
@@ -288,11 +288,16 @@ msgstr "%(name)s a été ajouté aux participants"
 msgid "%(name)s is already a participant"
 msgstr "%(name)s est déjà participant"
 
-#: cfp/forms.py:55
+#: cfp/forms.py:44
+msgid "New staff members will be informed of their new position by e-mail."
+msgstr ""
+"Les nouveaux membres du staff seront informés de leur nouveau rôle par courrier électronique."
+
+#: cfp/forms.py:64
 msgid "An user with that firstname and that lastname already exists."
 msgstr "Un utilisateur avec ce prénom et ce nom existe déjà."
 
-#: cfp/forms.py:60
+#: cfp/forms.py:69
 msgid "A user with that email already exists."
 msgstr "Un utilisateur avec cet email existe déjà."
 
@@ -751,10 +756,38 @@ msgid "Decision taken in account"
 msgstr "Décision enregistrée"
 
 #: cfp/views.py:214
+msgid "[{}] You have been added to the staff team"
+msgstr "[{}] Vous avez été ajouté aux membres du staff"
+
+#: cfp/views.py:215
+msgid ""
+"Hi {},\n"
+"\n"
+"You have been added to the staff team.\n"
+"\n"
+"You can now:\n"
+"- login: {}\n"
+"- reset your password: {}\n"
+"\n"
+"{}\n"
+"\n"
+msgstr ""
+"Bonjour {},\n"
+"\n"
+"Vous avez été ajouté à l’équipe d’organisation.\n"
+"\n"
+"Vous pouvez à présent :\n"
+"- vous connecter : {}\n"
+"- réinitialiser votre mot de passe : {}\n"
+"\n"
+"{}\n"
+"\n"
+
+#: cfp/views.py:235
 msgid "Modifications successfully saved."
 msgstr "Modification enregistrée avec succès."
 
-#: cfp/views.py:228
+#: cfp/views.py:249
 msgid "User created successfully."
 msgstr "Utilisateur créé avec succès."
 
@@ -873,7 +906,7 @@ msgstr "Mot de passe oublié ?"
 msgid "Password Change"
 msgstr "Changement de mot de passe"
 
-#: ponyconf/urls.py:27
+#: ponyconf/urls.py:26
 msgid "Email address"
 msgstr ""