diff --git a/templates/zerver/emails/invitation.subject b/templates/zerver/emails/invitation.subject
index 76816b371b..fd57077109 100644
--- a/templates/zerver/emails/invitation.subject
+++ b/templates/zerver/emails/invitation.subject
@@ -1 +1 @@
-{{referrer.full_name}} invited you to join Zulip
+{{referrer.full_name}} invited you to join {{ referrer_realm_name }}
diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index 1a1cf5696a..820765c408 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -3053,7 +3053,8 @@ def do_send_confirmation_email(invitee, referrer, body):
     `referrer` is a UserProfile.
     """
     activation_url = Confirmation.objects.get_link_for_object(invitee, referrer.realm.host)
-    context = {'referrer': referrer, 'custom_body': body, 'activate_url': activation_url}
+    context = {'referrer': referrer, 'custom_body': body, 'activate_url': activation_url,
+               'referrer_realm_name': referrer.realm.name}
     from_name = u"%s (via Zulip)" % (referrer.full_name,)
     send_email('zerver/emails/invitation', invitee.email, from_name=from_name,
                from_address=FromAddress.NOREPLY, context=context)
diff --git a/zerver/tests/test_docs.py b/zerver/tests/test_docs.py
index e206d809fc..59ef1399e4 100644
--- a/zerver/tests/test_docs.py
+++ b/zerver/tests/test_docs.py
@@ -50,7 +50,7 @@ class DocPageTest(ZulipTestCase):
         self._test('/devtools/', 'Useful development URLs')
         self._test('/errors/404/', 'Page not found')
         self._test('/errors/5xx/', 'Internal server error')
-        self._test('/emails/', 'Road Runner invited you to join Zulip')
+        self._test('/emails/', 'Road Runner invited you to join Acme Corporation')
         self._test('/register/', 'Sign up for Zulip')
 
         result = self.client_get('/new-user/')
@@ -68,6 +68,7 @@ class DocPageTest(ZulipTestCase):
             ''.join(str(x) for x in list(result.streaming_content))
         )
 
+
 class IntegrationTest(TestCase):
     def test_check_if_every_integration_has_logo_that_exists(self):
         # type: () -> None