diff --git a/product/ERP5/Document/TradeCondition.py b/product/ERP5/Document/TradeCondition.py
index 8ee39d9adb55c52a034a43114391ea83f2fc4745..d46c04c57267ee59007b498735ab95d65f8c664d 100755
--- a/product/ERP5/Document/TradeCondition.py
+++ b/product/ERP5/Document/TradeCondition.py
@@ -53,6 +53,7 @@ class TradeCondition(Path):
                       , PropertySheet.XMLObject
                       , PropertySheet.CategoryCore
                       , PropertySheet.DublinCore
+                      , PropertySheet.Comment
                       , PropertySheet.Arrow
                       , PropertySheet.TradeCondition
                       )