diff --git a/src/webserver/PutUpdates.jl b/src/webserver/PutUpdates.jl
index 84acfb0d62..2e8a26af3c 100644
--- a/src/webserver/PutUpdates.jl
+++ b/src/webserver/PutUpdates.jl
@@ -1,10 +1,6 @@
 
-function serialize_message_to_stream(io::IO, message::UpdateMessage, recipient::ClientSession)
-    to_send = Dict{Symbol,Any}(
-        :type => message.type, 
-        :message => message.message,
-        :recipient_id => recipient.id,
-    )
+function serialize_message_to_stream(io::IO, message::UpdateMessage)
+    to_send = Dict(:type => message.type, :message => message.message)
     if message.notebook !== nothing
         to_send[:notebook_id] = message.notebook.notebook_id
     end