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

diff --git a/src/astvalidation.nit b/src/astvalidation.nit
index 578f931..b78632b 100644
--- a/src/astvalidation.nit
+++ b/src/astvalidation.nit
@@ -51,7 +51,7 @@ redef class ANode
 		end
 		v.seen.add(self)
 
-		if _location == null then
+		if not isset _location then
 			#debug "LOCATION: unlocated node {v.path.join(", ")}"
 			_location = self.parent.location
 		end