diff --git a/addons/account/account_move_line.py b/addons/account/account_move_line.py
index 772af55414e..c0bfd702856 100644
--- a/addons/account/account_move_line.py
+++ b/addons/account/account_move_line.py
@@ -338,12 +338,12 @@ class account_move_line(osv.osv):
         for line_id, invoice_id in cursor.fetchall():
             res[line_id] = invoice_id
             invoice_ids.append(invoice_id)
-        invoice_names = {False: ''}
+        invoice_names = {}
         for invoice_id, name in invoice_obj.name_get(cursor, user, invoice_ids, context=context):
             invoice_names[invoice_id] = name
         for line_id in res.keys():
             invoice_id = res[line_id]
-            res[line_id] = (invoice_id, invoice_names[invoice_id])
+            res[line_id] = invoice_id and (invoice_id, invoice_names[invoice_id]) or False
         return res
 
     def name_get(self, cr, uid, ids, context=None):
diff --git a/openerp/addons/base/ir/ir_translation.py b/openerp/addons/base/ir/ir_translation.py
index b6a7a722ddb..5cae25cc0ad 100644
--- a/openerp/addons/base/ir/ir_translation.py
+++ b/openerp/addons/base/ir/ir_translation.py
@@ -20,6 +20,7 @@
 ##############################################################################
 
 import logging
+import unicodedata
 
 from openerp import tools
 import openerp.modules
@@ -332,10 +333,11 @@ class ir_translation(osv.osv):
                            AND name=%s""",
                     (lang or '', types, tools.ustr(name)))
         res = cr.fetchone()
-        trad = res and res[0] or u''
+        trad = res and tools.ustr(res[0]) or u''
         if source and not trad:
             return tools.ustr(source)
-        return trad
+        # Remove control characters
+        return filter(lambda c: unicodedata.category(c) != 'Cc', trad)
 
     def create(self, cr, uid, vals, context=None):
         if context is None: