diff --git a/lib/conf.d/bases_structure.xml b/lib/conf.d/bases_structure.xml
index c94c838aa1..bafcefb40b 100644
--- a/lib/conf.d/bases_structure.xml
+++ b/lib/conf.d/bases_structure.xml
@@ -3518,11 +3518,9 @@
           <field>
             <name>usr_sexe</name>
             <type>int(1) unsigned</type>
-            <null></null>
+            <null>YES</null>
             <extra></extra>
-
-
-            <default>0</default>
+            <default></default>
             <comment></comment>
           </field>
           <field>
@@ -4013,7 +4011,7 @@
           <default>
             <data key="usr_id">null</data>
             <data key="ldap_created">2</data>
-            <data key="usr_sexe">0</data>
+            <data key="usr_sexe">null</data>
             <data key="usr_login">autoregister</data>
             <data key="usr_password">autoregister</data>
             <data key="usr_creationdate">NOW()</data>
@@ -4032,7 +4030,7 @@
           <default>
             <data key="usr_id">null</data>
             <data key="ldap_created">2</data>
-            <data key="usr_sexe">0</data>
+            <data key="usr_sexe">null</data>
             <data key="usr_login">invite</data>
             <data key="usr_password">invite</data>
             <data key="usr_creationdate">NOW()</data>
diff --git a/templates/web/account/account.html.twig b/templates/web/account/account.html.twig
index 20adeb9b1f..9b579b6d83 100644
--- a/templates/web/account/account.html.twig
+++ b/templates/web/account/account.html.twig
@@ -46,6 +46,7 @@
                             <label class="form_label control-label" for="form_gender"><strong>{% trans "admin::compte-utilisateur sexe" %}</strong></label>
                             <div class="controls">
                                 <select name="form_gender" class="input-xlarge">
+                                    <option value=""></option>
                                     <option {% if app["authentication"].getUser().get_gender() == "0" %}selected{% endif %} value="0" >
                                         {% trans "admin::compte-utilisateur:sexe: mademoiselle" %}
                                     </option>