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

diff --git a/lib/opts.nit b/lib/opts.nit
index 46d3d11..d6efd3e 100644
--- a/lib/opts.nit
+++ b/lib/opts.nit
@@ -83,7 +83,7 @@ abstract class Option
 	fun pretty_default: String
 	do
 		var dv = default_value
-		if dv != null then return " ({dv})"
+		if dv != null then return " ({dv.to_s})"
 		return ""
 	end
 
@@ -195,7 +195,7 @@ class OptionEnum
 	redef fun pretty_default
 	do
 		if default_value != null then
-			return " ({values[default_value.as(not null)]})"
+			return " ({values[default_value]})"
 		else
 			return ""
 		end