diff --git a/addons/account/report/report_pl.py b/addons/account/report/report_pl.py
index 7411f5f9c52..e8d6f0a9b2a 100644
--- a/addons/account/report/report_pl.py
+++ b/addons/account/report/report_pl.py
@@ -174,8 +174,8 @@ class report_pl_account_horizontal(rml_parse.rml_parse, common_report_header):
         return self.result.get(group, [])
 
 report_sxw.report_sxw('report.pl.account.horizontal', 'account.account',
-    'addons/account/report/report_pl_account_horizontal.rml',parser=report_pl_account_horizontal, header=False)
+    'addons/account/report/report_pl_account_horizontal.rml',parser=report_pl_account_horizontal, header='internal')
 
 report_sxw.report_sxw('report.pl.account', 'account.account',
-    'addons/account/report/report_pl_account.rml',parser=report_pl_account_horizontal, header=False)
+    'addons/account/report/report_pl_account.rml',parser=report_pl_account_horizontal, header='internal')