diff --git a/modules/purchase_trade/purchase.py b/modules/purchase_trade/purchase.py
index 7a2f4f5..7b663d3 100755
--- a/modules/purchase_trade/purchase.py
+++ b/modules/purchase_trade/purchase.py
@@ -530,6 +530,7 @@ class PriceComposition(ModelSQL,ModelView):
     price = fields.Numeric("Price")
     
 class QualityAnalysis(ModelSQL,ModelView):
+    "Quality Analysis"
     __name__ = 'quality.analysis'
 
     line = fields.Many2One('purchase.line',"Purchase Line")