diff --git a/lib/json/serialization.nit b/lib/json/serialization.nit
index 6bcaccf792..3873df320f 100644
--- a/lib/json/serialization.nit
+++ b/lib/json/serialization.nit
@@ -734,7 +734,7 @@ redef class Text
 
 	# Strip the `nullable` prefix and the params from the class name `self`
 	#
-	# ~~~
+	# ~~~nitish
 	# assert "String".strip_nullable_and_params == "String"
 	# assert "Array[Int]".strip_nullable_and_params == "Array"
 	# assert "Map[Set[String], Set[Int]]".strip_nullable_and_params == "Map"
@@ -1047,7 +1047,7 @@ private fun class_inheritance_metamodel_json: NativeString is intern
 redef class Sys
 	# Class inheritance graph
 	#
-	# ~~~
+	# ~~~nitish
 	# var hierarchy = class_inheritance_metamodel
 	# assert hierarchy.has_edge("String", "Object")
 	# assert not hierarchy.has_edge("Object", "String")