diff --git a/21_XML_JSON.md b/21_XML_JSON.md
index 78f3c1b..d30270d 100644
--- a/21_XML_JSON.md
+++ b/21_XML_JSON.md
@@ -443,6 +443,7 @@ TRY.
 CATCH cx_invalid_transformation.
   ...
 ENDTRY.
+```
 
 Specifying the source of the transformation
 There are multiple options. Check the executable example to see them in action.