lib/mongo/protocol/msg.rb in mongo-2.7.0 vs lib/mongo/protocol/msg.rb in mongo-2.7.1

@@ -81,10 +81,10 @@
       # @return [ BSON::Document ] The event payload.
       #
       # @since 2.5.0
       def payload
         BSON::Document.new(
-          command_name: command.keys.first,
+          command_name: command.keys.first.to_s,
           database_name: global_args[DATABASE_IDENTIFIER],
           command: command,
           request_id: request_id,
           reply: sections[0]
         )