diff --git a/bin/acorn b/bin/acorn
index a3d05f4e69..d5e5e3a511 100755
--- a/bin/acorn
+++ b/bin/acorn
@@ -7,7 +7,7 @@ var acorn = require("../acorn.js");
 var infile, parsed, options = {}, silent = false, compact = false;
 
 function help(status) {
-  var print = (status == 0) ? console.out : console.error;
+  var print = (status == 0) ? console.log : console.error;
   print("usage: " + path.basename(process.argv[1]) + " [--ecma3|--ecma5] [--strictSemicolons]");
   print("        [--locations] [--compact] [--silent] [--help] [--] infile");
   process.exit(status);