diff --git a/zerver/lib/actions.py b/zerver/lib/actions.py
index a90074b95b..54fb28b321 100644
--- a/zerver/lib/actions.py
+++ b/zerver/lib/actions.py
@@ -299,7 +299,7 @@ def do_send_messages(messages):
 
             for um in ums_to_create:
                 sent_by_human = (message['message'].sending_client.name.lower() in \
-                                    ['website', 'iphone', 'android']) or \
+                                    ['website', 'ios', 'android']) or \
                                 ('desktop app' in message['message'].sending_client.name.lower())
                 if um.user_profile.id == message['message'].sender.id and sent_by_human:
                     um.flags |= UserMessage.flags.read