diff --git a/README.rst b/README.rst
index 789efb72..74ece12f 100644
--- a/README.rst
+++ b/README.rst
@@ -350,7 +350,7 @@ Events
 
     intercom.events.create(
         event_name='invited-friend',
-        created_at=time.mktime(time.localtime()),
+        created_at=int(time.mktime(time.localtime())),
         email=user.email,
         metadata={
             'invitee_email': 'pi@example.org',