diff --git a/statement.py b/statement.py
index a914041985..5a9cf84408 100644
--- a/statement.py
+++ b/statement.py
@@ -211,7 +211,7 @@ class Line(OSV):
              })
 
         journal = statement_line.statement.journal.journal
-        if statement_line.amount < 0:
+        if statement_line.amount < Decimal('0.0'):
             account = journal.credit_account
         else:
             account = journal.debit_account