diff --git a/README.md b/README.md
index 30c17be..e56e26e 100644
--- a/README.md
+++ b/README.md
@@ -118,6 +118,6 @@
 
 ```dart
 var t = new Template('{{# foo }}{{bar}}{{/ foo }}');
-var lambda = (LambdaContext ctx) => ctx.renderSource(ctx.source + '{{cmd}}')};
+var lambda = (LambdaContext ctx) => ctx.renderSource(ctx.source + ' {{cmd}}')};
 t.renderString({'foo': lambda, 'bar': 'pub', 'cmd': 'build'}); // pub build
 ```