diff --git a/doc/sample/Blocks.im b/doc/sample/Blocks.im
index 075350e..ad3a45c 100644
--- a/doc/sample/Blocks.im
+++ b/doc/sample/Blocks.im
@@ -12,3 +12,4 @@ pkg2 = {
 x = a(x:5 y:2) + 5.
 a + b().
 a->b().
+b = [ :x | cout put:'hello, {x}' ](:'John').