diff --git a/dicos/99_one-master.xml b/dicos/99_one-master.xml
index 93cb346..0663f2e 100644
--- a/dicos/99_one-master.xml
+++ b/dicos/99_one-master.xml
@@ -70,20 +70,26 @@
             </variable>
         </family>
         <family name='Hooks'>
-          <variable name='hapy_vm_hook' type='string' description="Nom du hook de VM" multi='True' mode='expert'/>
-          <variable name='hapy_vm_hook_on' type='string' description="Déclancheur (on)" mode='expert'/>
-          <variable name='hapy_vm_hook_command' type='string' description="Script a déclancher (command)" mode='expert'/>
-          <variable name='hapy_vm_hook_arguments' type='string' description="Arguments a passer au script (arguments)" mode='expert'/>
-          <variable name='hapy_vm_hook_remote' type='oui/non' description="Exécuter sur les noeuds (remote)" mode='expert'>
+          <variable name='hapy_vm_hooks' type='oui/non' description="Hooks sur les VM" mode='expert' mandatory='True'>
              <value>non</value>
           </variable>
-          <variable name='hapy_vm_hook_state' type='string' description="Etat attendus en déclancheur 'custom' (STATE)" mode='expert'/>
-          <variable name='hapy_vm_hook_lcm_state' type='string' description="Etat 'lcm' attendus en déclancheur 'custom' (LCM_STATE)" mode='expert'/>
+          <variable name='hapy_vm_hook' type='string' description="Nom du hook de VM" multi='True' mode='expert'/>
+          <variable name='hapy_vm_hook_on' type='string' description="Déclencheur (on)" mode='expert'/>
+          <variable name='hapy_vm_hook_command' type='string' description="Script à déclencher (command)" mode='expert'/>
+          <variable name='hapy_vm_hook_arguments' type='string' description="Arguments à passer au script (arguments)" mode='expert'/>
+          <variable name='hapy_vm_hook_remote' type='oui/non' description="Exécuter sur les nœuds (remote)" mode='expert'>
+             <value>non</value>
+          </variable>
+          <variable name='hapy_vm_hook_state' type='string' description="État attendu en déclencheur 'custom' (STATE)" mode='expert'/>
+          <variable name='hapy_vm_hook_lcm_state' type='string' description="État 'lcm' attendu en déclencheur 'custom' (LCM_STATE)" mode='expert'/>
 
+          <variable name='hapy_user_hooks' type='oui/non' description="Hooks sur les utilisateurs" mode='expert' mandatory='True'>
+             <value>non</value>
+          </variable>
           <variable name='hapy_user_hook' type='string' description="Nom du hook d' utilisateur" multi='True' mode='expert'/>
-          <variable name='hapy_user_hook_on' type='string' description="Déclancheur (on)" mode='expert'/>
-          <variable name='hapy_user_hook_command' type='string' description="Script a déclancher (command)" mode='expert'/>
-          <variable name='hapy_user_hook_arguments' type='string' description="Arguments a passer au script (arguments)" mode='expert'/>
+          <variable name='hapy_user_hook_on' type='string' description="Déclencheur (on)" mode='expert' mandatory='True'/>
+          <variable name='hapy_user_hook_command' type='string' description="Script à déclencher (command)" mode='expert' mandatory='True'/>
+          <variable name='hapy_user_hook_arguments' type='string' description="Arguments à passer au script (arguments)" mode='expert'/>
         </family>
     </variables>
 
@@ -187,6 +193,10 @@
           <param>['CREATE','RUNNING','SHUTDOWN','STOP','DONE','UNKNOWN','FAILED','CUSTOM']</param>
         </check>
 
+        <condition name='disabled_if_in' source='hapy_vm_hooks'>
+            <param>non</param>
+            <target type='variable'>hapy_vm_hook</target>
+        </condition>
         <group master='hapy_vm_hook'>
           <slave>hapy_vm_hook_on</slave>
           <slave>hapy_vm_hook_command</slave>
@@ -200,6 +210,10 @@
           <param>['CREATE','REMOVE']</param>
         </check>
 
+        <condition name='disabled_if_in' source='hapy_user_hooks'>
+            <param>non</param>
+            <target type='variable'>hapy_user_hook</target>
+        </condition>
         <group master='hapy_user_hook'>
           <slave>hapy_user_hook_on</slave>
           <slave>hapy_user_hook_command</slave>