diff --git a/addons/auth_signup/auth_signup_data.xml b/addons/auth_signup/auth_signup_data.xml
index 096d2327393..47058a3224a 100644
--- a/addons/auth_signup/auth_signup_data.xml
+++ b/addons/auth_signup/auth_signup_data.xml
@@ -30,7 +30,7 @@
             <field name="body_html"><![CDATA[
 <p>A password reset was requested for the Odoo account linked to this email.</p>
 
-<p>You may change your password by following <a href="${object.signup_url}">this link</a>.</p>
+<p>You may change your password by following <a href="${object.signup_url}">this link</a>, which will remain valid during 24 hours.</p>
 
 <p>Note: If you do not expect this, you can safely ignore this email.</p>]]></field>
         </record>