diff --git a/repository/STON-Core.package/STON.class/class/toJsonString..st b/repository/STON-Core.package/STON.class/class/toJsonString..st
index 719e915..21f09d8 100644
--- a/repository/STON-Core.package/STON.class/class/toJsonString..st
+++ b/repository/STON-Core.package/STON.class/class/toJsonString..st
@@ -3,7 +3,7 @@ toJsonString: object
 	"Return a String with the JSON serialization of object.
 	Note that the object graph can only contain lists (Array) and maps (Dictionary)"
 
-	"STON toJsonString: { { #foo->1 } asDictionary. { #bar->2 } asDictionary }"
+	"(STON toJsonString: { { #foo->1 } asDictionary. { #bar->2 } asDictionary }) >>> '[{""foo"":1},{""bar"":2}]'"
 
 	^ String streamContents: [ :stream |
 			self put: object asJsonOnStream: stream ]
\ No newline at end of file