diff --git a/addons/account/report/account_balance.py b/addons/account/report/account_balance.py
index 8fe9af39e00..cf7532c058f 100644
--- a/addons/account/report/account_balance.py
+++ b/addons/account/report/account_balance.py
@@ -89,10 +89,10 @@ class account_balance(report_sxw.rml_parse, common_report_header):
                 self.sum_debit += account_rec['debit']
                 self.sum_credit += account_rec['credit']
                 if disp_acc == 'bal_movement':
-                    if currency_obj.is_zero(self.cr, self.uid, currency, res['credit']) > 0 or currency_obj.is_zero(self.cr, self.uid, currency, res['debit']) > 0 or currency_obj.is_zero(self.cr, self.uid, currency, res['balance']) != 0:
+                    if (not currency_obj.is_zero(self.cr, self.uid, currency, res['debit'])) or (not currency_obj.is_zero(self.cr, self.uid, currency, res['credit'])) or not (currency_obj.is_zero(self.cr, self.uid, currency, res['balance'])):
                         self.result_acc.append(res)
                 elif disp_acc == 'bal_solde':
-                    if currency_obj.is_zero(self.cr, self.uid, currency, res['debit']) != 0:
+                    if not currency_obj.is_zero(self.cr, self.uid, currency, res['balance']):
                         self.result_acc.append(res)
                 else:
                     self.result_acc.append(res)
diff --git a/addons/account/report/account_balance_sheet.py b/addons/account/report/account_balance_sheet.py
index 8762b44e1e2..4e918ac0e1b 100644
--- a/addons/account/report/account_balance_sheet.py
+++ b/addons/account/report/account_balance_sheet.py
@@ -143,10 +143,10 @@ class report_balancesheet_horizontal(report_sxw.rml_parse, common_report_header)
                     if typ == 'asset' and account.type <> 'view' and (account.debit <> account.credit):
                         self.result_sum_cr += account.balance
                     if data['form']['display_account'] == 'bal_movement':
-                        if currency_pool.is_zero(self.cr, self.uid, currency, account.credit) > 0 or currency_pool.is_zero(self.cr, self.uid, currency, account.debit) > 0 or currency_pool.is_zero(self.cr, self.uid, currency, account.balance) != 0:
+                        if (not currency_pool.is_zero(self.cr, self.uid, currency, account.credit)) or (not currency_pool.is_zero(self.cr, self.uid, currency, account.debit)) or (not currency_pool.is_zero(self.cr, self.uid, currency, account.balance)):
                             accounts_temp.append(account_dict)
                     elif data['form']['display_account'] == 'bal_solde':
-                        if currency_pool.is_zero(self.cr, self.uid, currency, account.balance) != 0:
+                        if not currency_pool.is_zero(self.cr, self.uid, currency, account.balance):
                             accounts_temp.append(account_dict)
                     else:
                         accounts_temp.append(account_dict)
diff --git a/addons/account/report/account_profit_loss.py b/addons/account/report/account_profit_loss.py
index c17d2e7b23e..06692bf19e9 100644
--- a/addons/account/report/account_profit_loss.py
+++ b/addons/account/report/account_profit_loss.py
@@ -113,10 +113,10 @@ class report_pl_account_horizontal(report_sxw.rml_parse, common_report_header):
                     if typ == 'income' and account.type <> 'view' and (account.debit <> account.credit):
                         self.result_sum_cr += abs(account.debit - account.credit)
                     if data['form']['display_account'] == 'bal_movement':
-                        if currency_pool.is_zero(self.cr, self.uid, currency, account.credit) > 0 or currency_pool.is_zero(self.cr, self.uid, currency, account.debit) > 0 or currency_pool.is_zero(self.cr, self.uid, currency, account.balance) != 0:
+                        if (not currency_pool.is_zero(self.cr, self.uid, currency, account.credit)) or (not currency_pool.is_zero(self.cr, self.uid, currency, account.debit)) or (not currency_pool.is_zero(self.cr, self.uid, currency, account.balance)):
                             accounts_temp.append(account)
                     elif data['form']['display_account'] == 'bal_solde':
-                        if currency_pool.is_zero(self.cr, self.uid, currency, account.balance) != 0:
+                        if not currency_pool.is_zero(self.cr, self.uid, currency, account.balance):
                             accounts_temp.append(account)
                     else:
                         accounts_temp.append(account)