diff --git a/README.md b/README.md
index 46eb2d7..41520bb 100644
--- a/README.md
+++ b/README.md
@@ -163,7 +163,7 @@ import Compiler from require "etlua"
 class DebugCompiler extends Compiler
   header: =>
     @push 'print("Running template")\n'
-    super
+    super!
 
 -- try it out
 import Parser from require "etlua"