diff --git a/doc/api/child_process.markdown b/doc/api/child_process.markdown
index 716a9013e67..99f72db7f67 100644
--- a/doc/api/child_process.markdown
+++ b/doc/api/child_process.markdown
@@ -404,7 +404,7 @@ file:
          err = fs.openSync('./out.log', 'a');
 
      var child = spawn('prg', [], {
-       detached: 'true',
+       detached: true,
        stdio: [ 'ignore', out, err ]
      });