diff --git a/src/post.js b/src/post.js
index <HASH>..<HASH> 100644
--- a/src/post.js
+++ b/src/post.js
@@ -106,7 +106,7 @@ return function ()
                     if (line == "quit") {
                         process.exit();
                     }
-                    stockfish.postMessage(line);
+                    stockfish.postMessage(line, true);
                 }
             });
Don't delay for command line either.