diff --git a/addons/sms/wizard/sms_composer_views.xml b/addons/sms/wizard/sms_composer_views.xml
index 520ce39fe0b..17e9d2ac25e 100644
--- a/addons/sms/wizard/sms_composer_views.xml
+++ b/addons/sms/wizard/sms_composer_views.xml
@@ -45,8 +45,8 @@
                             <field name="recipient_single_description" class="oe_inline"/>
                             <field name="recipient_single_number_itf" class="oe_inline" nolabel="1" options="{'onchange_on_keydown': True}" placeholder="e.g. +1 415 555 0100"/>
                         </div>
-                        <field name="body" widget="sms_widget" attrs="{'invisible': ['|', ('comment_single_recipient', '=', False), ('recipient_single_valid', '=', True)], 'required': ['|', ('comment_single_recipient', '=', False), ('recipient_single_valid', '=', True)]}"/>
-                        <field name="body" widget="sms_widget" attrs="{'invisible': [('comment_single_recipient', '=', True), ('recipient_single_valid', '=', False)], 'required': [('comment_single_recipient', '=', True), ('recipient_single_valid', '=', False)]}" default_focus="1"/>
+                        <field name="body" widget="sms_widget" attrs="{'invisible': ['|', ('comment_single_recipient', '=', False), ('recipient_single_valid', '=', True)]}"/>
+                        <field name="body" widget="sms_widget" attrs="{'invisible': [('comment_single_recipient', '=', True), ('recipient_single_valid', '=', False)]}" default_focus="1"/>
                         <field name="mass_keep_log" invisible="1"/>
                     </group>
                 </sheet>