diff --git a/pyjeeves/models/raw.py b/pyjeeves/models/raw.py
index 3eb7a96..3c47bf5 100644
--- a/pyjeeves/models/raw.py
+++ b/pyjeeves/models/raw.py
@@ -39,14 +39,15 @@ class ArticleClass(RawBaseModel):
 class CommodityGroup(RawBaseModel):
     __tablename__ = 'vg'
     __column_map__ = {'VaruGruppKod': 'CommodityGroupNumber',
-                      'VaruGruppBeskr': 'CommodityGroupName'}
+                      'VaruGruppBeskr': 'CommodityGroupName',
+                      'ArticleClass': 'DefaultArticleClass'}
     __to_dict_only__ = ('VaruGruppKod', 'VaruGruppBeskr', 'ArticleClass')
     print_filter = ('Articles', 'articles_collection')
     # to_json_filter = ('Articles', 'articles_collection')
 
     ArtKod = Column(Integer, ForeignKey('xm.ArtKod'), primary_key=True)
 
-    ArticleClass = relationship(ArticleClass)
+    ArticleClass = relationship(ArticleClass, lazy='joined')
 
 
 class ArticleAlternativeUnit(RawBaseModel):