diff --git a/src/pretix/api/serializers/organizer.py b/src/pretix/api/serializers/organizer.py
index 15807d14b7..ab12e7b942 100644
--- a/src/pretix/api/serializers/organizer.py
+++ b/src/pretix/api/serializers/organizer.py
@@ -365,7 +365,7 @@ class TeamInviteSerializer(serializers.ModelSerializer):
     def _send_invite(self, instance):
         mail(
             instance.email,
-            _('account invitation'),
+            _('Account invitation'),
             'pretixcontrol/email/invitation.txt',
             {
                 'instance': settings.PRETIX_INSTANCE_NAME,
diff --git a/src/pretix/control/views/organizer.py b/src/pretix/control/views/organizer.py
index 146ef96a48..428415bf6d 100644
--- a/src/pretix/control/views/organizer.py
+++ b/src/pretix/control/views/organizer.py
@@ -1039,7 +1039,7 @@ class TeamMemberView(OrganizerDetailViewMixin, OrganizerPermissionRequiredMixin,
     def _send_invite(self, instance):
         mail(
             instance.email,
-            _('pretix account invitation'),
+            _('Account invitation'),
             'pretixcontrol/email/invitation.txt',
             {
                 'user': self,