diff --git a/addons/membership/membership.py b/addons/membership/membership.py
index 0a4dd491847..895d6ca7261 100644
--- a/addons/membership/membership.py
+++ b/addons/membership/membership.py
@@ -249,7 +249,7 @@ class Partner(osv.osv):
                                 s = 3
                 if s==4:
                     for mline in partner_data.member_lines:
-                        if mline.date_from < today and mline.date_to < today and mline.date_from <= mline.date_to and (mline.account_invoice_line and mline.account_invoice_line.invoice_id.state) == 'paid':
+                        if mline.date_from < today and mline.date_to < today and mline.date_from <= mline.date_to and mline.account_invoice_line and mline.account_invoice_line.invoice_id.state == 'paid':
                             s = 5
                         else:
                             s = 6