diff --git a/weboob/applications/boobill/boobill.py b/weboob/applications/boobill/boobill.py
index ba16b949..d424805d 100644
--- a/weboob/applications/boobill/boobill.py
+++ b/weboob/applications/boobill/boobill.py
@@ -19,6 +19,7 @@
 
 
 import sys
+from decimal import Decimal
 
 from weboob.capabilities.bill import ICapBill, Detail, Subscription
 from weboob.tools.application.repl import ReplApplication
@@ -80,9 +81,9 @@ class Boobill(ReplApplication):
         # XXX: should be generated by backend? -Flo
         # XXX: no, but you should do it in a specific formatter -romain
         mysum = Detail()
-        mysum.label = "Sum"
-        mysum.infos = "Generated by boobill"
-        mysum.price = 0.
+        mysum.label = u"Sum"
+        mysum.infos = u"Generated by boobill"
+        mysum.price = Decimal("0.")
 
         self.start_format()
         for backend, detail in self.do('get_details', id, backends=names):