diff --git a/addons/l10n_fr_fec/wizard/account_fr_fec.py b/addons/l10n_fr_fec/wizard/account_fr_fec.py
index 032baf2d971..386a6e2b3e7 100644
--- a/addons/l10n_fr_fec/wizard/account_fr_fec.py
+++ b/addons/l10n_fr_fec/wizard/account_fr_fec.py
@@ -109,6 +109,7 @@ class AccountFrFec(models.TransientModel):
             u'Idevise',        # 17
             ]
 
+        rows_to_write = [header]
         company = self.env.user.company_id
         if not company.vat:
             raise Warning(
@@ -117,10 +118,6 @@ class AccountFrFec(models.TransientModel):
             raise Warning(
                 _("FEC is for French companies only !"))
 
-        fecfile = io.BytesIO()
-        w = pycompat.csv_writer(fecfile, delimiter='|')
-        w.writerow(header)
-
         # INITIAL BALANCE
         unaffected_earnings_xml_ref = self.env.ref('account.data_unaffected_earnings')
         unaffected_earnings_line = True  # used to make sure that we add the unaffected earning initial balance only once
@@ -196,7 +193,8 @@ class AccountFrFec(models.TransientModel):
                     else:
                         listrow[11] = '0,00'
                         listrow[12] = str(-listrow_amount).replace('.', ',')
-            w.writerow(listrow)
+            rows_to_write.append(listrow)
+
         #if the unaffected earnings account wasn't in the selection yet: add it manually
         if (not unaffected_earnings_line
             and unaffected_earnings_results
@@ -207,7 +205,7 @@ class AccountFrFec(models.TransientModel):
             if unaffected_earnings_account:
                 unaffected_earnings_results[4] = unaffected_earnings_account.code
                 unaffected_earnings_results[5] = unaffected_earnings_account.name
-            w.writerow(unaffected_earnings_results)
+            rows_to_write.append(unaffected_earnings_results)
 
         # INITIAL BALANCE - receivable/payable
         sql_query = '''
@@ -265,7 +263,7 @@ class AccountFrFec(models.TransientModel):
         for row in self._cr.fetchall():
             listrow = list(row)
             account_id = listrow.pop()
-            w.writerow(listrow)
+            rows_to_write.append(listrow)
 
         # LINES
         sql_query = '''
@@ -330,20 +328,20 @@ class AccountFrFec(models.TransientModel):
             sql_query, (self.date_from, self.date_to, company.id))
 
         for row in self._cr.fetchall():
-            w.writerow(list(row))
+            rows_to_write.append(list(row))
 
+        fecvalue = self._csv_write_rows(rows_to_write)
         siren = company.vat[4:13]
         end_date = self.date_to.replace('-', '')
         suffix = ''
         if self.export_type == "nonofficial":
             suffix = '-NONOFFICIAL'
-        fecvalue = fecfile.getvalue()
+
         self.write({
             'fec_data': base64.encodestring(fecvalue),
             # Filename = <siren>FECYYYYMMDD where YYYMMDD is the closing date
             'filename': '%sFEC%s%s.csv' % (siren, end_date, suffix),
             })
-        fecfile.close()
 
         action = {
             'name': 'FEC',
@@ -352,3 +350,29 @@ class AccountFrFec(models.TransientModel):
             'target': 'self',
             }
         return action
+
+    def _csv_write_rows(self, rows, lineterminator=u'\r\n'):
+        """
+        Write FEC rows into a file
+        It seems that Bercy's bureaucracy is not too happy about the
+        empty new line at the End Of File.
+
+        @param {list(list)} rows: the list of rows. Each row is a list of strings
+        @param {unicode string} [optional] lineterminator: effective line terminator
+            Has nothing to do with the csv writer parameter
+            The last line written won't be terminated with it
+
+        @return the value of the file
+        """
+        fecfile = io.BytesIO()
+        writer = pycompat.csv_writer(fecfile, delimiter='|', lineterminator='')
+
+        rows_length = len(rows)
+        for i, row in enumerate(rows):
+            if not i == rows_length - 1:
+                row.append(lineterminator)
+            writer.writerow(row)
+
+        fecvalue = fecfile.getvalue()
+        fecfile.close()
+        return fecvalue