diff -r 57633a3acc4f -r c675183a9325 src/p4l/api/serializers.py
--- a/src/p4l/api/serializers.py	Mon Sep 16 15:11:18 2013 +0200
+++ b/src/p4l/api/serializers.py	Mon Sep 16 16:18:30 2013 +0200
@@ -117,7 +117,7 @@
     '''
     Serializer for record
     '''
-    language = ThesaurusSerializer(many=False, slug_field='uri') 
+    language = ThesaurusSerializer(many=False, required=False, slug_field='uri') 
     otherLanguages = ThesaurusSerializer(many=True, slug_field='uri')
     subjects = ThesaurusSerializer(many=True, slug_field='uri')
     themes = ThesaurusSerializer(many=True, slug_field='uri')