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

diff --git a/src/frontend/serialization_phase.nit b/src/frontend/serialization_phase.nit
index a16aa6b..3a70e66 100644
--- a/src/frontend/serialization_phase.nit
+++ b/src/frontend/serialization_phase.nit
@@ -140,7 +140,7 @@ private class SerializationPhasePreModel
 		# collect all classes
 		var auto_serializable_nclassdefs = new Array[AStdClassdef]
 		for nclassdef in nmodule.n_classdefs do
-			if nclassdef isa AStdClassdef and nclassdef.is_serialize then
+			if nclassdef isa AStdClassdef and nclassdef.how_serialize != null then
 				auto_serializable_nclassdefs.add nclassdef
 			end
 		end
@@ -253,7 +253,7 @@ do
 		for nclassdef in nclassdefs do
 			var name = nclassdef.n_id.text
 			if nclassdef.n_formaldefs.is_empty and
-				not nclassdef.n_classkind isa AAbstractClasskind then
+			   nclassdef.n_classkind isa AConcreteClasskind then
 
 				code.add "		if name == \"{name}\" then return new {name}.from_deserializer(self)"
 			end