diff --git a/product/ERP5/Document/PaySheetCell.py b/product/ERP5/Document/PaySheetCell.py
index f3ce1dce2f941b1c7c4756cb2e0bb6970cf08ee1..c34ff88858b6cd1ba826a1f0683ea36c00207477 100644
--- a/product/ERP5/Document/PaySheetCell.py
+++ b/product/ERP5/Document/PaySheetCell.py
@@ -73,3 +73,6 @@ class PaySheetCell(InvoiceCell):
         We do not need conversion here
       """
       return self.getQuantity()
+
+    def isAccountable(self):
+      return 1
diff --git a/product/ERP5/Document/PaySheetLine.py b/product/ERP5/Document/PaySheetLine.py
index 35e0e838c76d58ef86360120e595cb85a90d365d..0ee7f1c8942031200b36226b070a403d90585403 100644
--- a/product/ERP5/Document/PaySheetLine.py
+++ b/product/ERP5/Document/PaySheetLine.py
@@ -79,3 +79,5 @@ class PaySheetLine(InvoiceLine):
       self.invokeFactory(type_name="Pay Sheet Cell",id=id)
       return self.get(id)
       
+    def isAccountable(self):
+      return 1