diff --git a/actioncable/lib/action_cable/remote_connections.rb b/actioncable/lib/action_cable/remote_connections.rb
index 283400d9e7..294ac7f149 100644
--- a/actioncable/lib/action_cable/remote_connections.rb
+++ b/actioncable/lib/action_cable/remote_connections.rb
@@ -45,7 +45,7 @@ module ActionCable
 
         # Uses the internal channel to disconnect the connection.
         def disconnect
-          server.broadcast internal_channel, type: "disconnect"
+          server.broadcast internal_channel, { type: "disconnect" }
         end
 
         # Returns all the identifiers that were applied to this connection.