X-Git-Url: http://nitlanguage.org

diff --git a/contrib/nitrpg/src/statistics.nit b/contrib/nitrpg/src/statistics.nit
index 2827ae9..764616f 100644
--- a/contrib/nitrpg/src/statistics.nit
+++ b/contrib/nitrpg/src/statistics.nit
@@ -172,12 +172,12 @@ class GameStats
 		for k, v in values do self[k] = v.as(Int)
 	end
 
-	redef fun to_json do
+	redef fun to_json_object do
 		var obj = super
 		obj["period"] = period
 		obj["owner"] = owner.key
 		var values = new JsonObject
-		values.recover_with(self)
+		values.add_all(self)
 		obj["values"] = values
 		return obj
 	end