diff --git a/addons/account/views/account_move_views.xml b/addons/account/views/account_move_views.xml
index 720ac2d4074..7cfec8368d6 100644
--- a/addons/account/views/account_move_views.xml
+++ b/addons/account/views/account_move_views.xml
@@ -582,7 +582,7 @@
                         <button name="action_invoice_sent"
                                 type="object"
                                 string="Send &amp; Print"
-                                attrs="{'invisible':['|', '|', ('state', '!=', 'posted'), ('invoice_pdf_report_id', '=', True), ('move_type', 'not in', ('out_invoice', 'out_refund'))]}"
+                                attrs="{'invisible':['|', '|', ('state', '!=', 'posted'), ('invoice_pdf_report_id', '!=', False), ('move_type', 'not in', ('out_invoice', 'out_refund'))]}"
                                 class="oe_highlight"
                                 data-hotkey="y"/>
                         <button name="action_invoice_sent"