lib/lightio/library/io.rb in lightio-0.2.1 vs lib/lightio/library/io.rb in lightio-0.2.2

@@ -33,10 +33,10 @@
       outbuf
     end
 
     def close(*args)
       # close watcher before io closed
-      @io_watcher&.close
+      @io_watcher.close
       @io.close(*args)
     end
 
     def to_io
       self