diff --git a/dicos/91_ninegate.xml b/dicos/91_ninegate.xml
index 0f6a4e92..6b698e41 100644
--- a/dicos/91_ninegate.xml
+++ b/dicos/91_ninegate.xml
@@ -127,6 +127,9 @@
             <variable type='string'  name='ninegate_keyterm' description="Durée de validité du jeton d'inscription"  mandatory='True'><value>8</value></variable>
             <variable type='string'  name='ninegate_minpassword' description="Taille minimun du password"  mandatory='True'><value>8</value></variable>
 
+            <variable type='oui/non' name='ninegate_forcetheme' description="Forcer l'utilisation d'un thème"><value>non</value></variable>
+            <variable type='string'  name='ninegate_forcethemename' description="Nom du thème"><value></value></variable>
+
 
             <!-- MODULE PORTAL -->
             <variable type="oui/non" name='ninegate_activate_portal' description='Activer le module portail'  mandatory='True'>
@@ -494,6 +497,8 @@
             <target type='variable'>ninegate_moderegistration</target>
             <target type='variable'>ninegate_keyterm</target>
             <target type='variable'>ninegate_minpassword</target>
+            <target type='variable'>ninegate_forcetheme</target>
+            <target type='variable'>ninegate_forcethemename</target>            
 
             <target type='variable'>ninegate_activate_portal</target>
             <target type='variable'>ninegate_activate_page</target>
@@ -699,6 +704,13 @@
             <target type='variable'>ninegate_addomaineprofil</target>
         </condition>
 
+        <!-- AFFICHAGE EN FONCTION DU FORCE THEME -->
+        <condition name='hidden_if_in' source='ninegate_forcetheme'>
+            <param>non</param>
+
+            <target type='variable'>ninegate_forcethemename</target>
+        </condition>
+
         <!-- AFFICHAGE EN FONCTION DU MODULE PORTAL -->
         <condition name='hidden_if_in' source='ninegate_activate_portal'>
             <param>non</param>
diff --git a/src/ninegate-1.0/src/Cadoles/CoreBundle/Command/InitDataCommand.php b/src/ninegate-1.0/src/Cadoles/CoreBundle/Command/InitDataCommand.php
index 92e04e50..77f28f1d 100644
--- a/src/ninegate-1.0/src/Cadoles/CoreBundle/Command/InitDataCommand.php
+++ b/src/ninegate-1.0/src/Cadoles/CoreBundle/Command/InitDataCommand.php
@@ -237,6 +237,27 @@ class InitDataCommand extends ContainerAwareCommand
             $this->addModeration($profil,'cadoles_cron_config_log',0);
         }
 
+        // Forcer le theme
+        $force_theme=$this->getContainer()->getParameter('force_theme');
+        if($force_theme) {
+
+            // On force la configuration du theme
+            $force_themename=$this->getContainer()->getParameter('force_themename');
+            $config = $em->getRepository('CadolesCoreBundle:Config')->find("theme");
+            if($config) {
+                $config->setValue($force_themename);
+                $em->persist($config);
+                $em->flush();                 
+            }
+
+            // On enlève l'accès de la sidebar
+            $sidebar = $em->getRepository('CadolesCoreBundle:Sidebar')->findOneBy(["path"=>"cadoles_core_config_theme"]);
+            if($sidebar) {
+                $em->remove($sidebar);
+                $em->flush();                
+            }
+        }
+
         $output->writeln('');
     }
 
diff --git a/tmpl/ninegate-template.yml b/tmpl/ninegate-template.yml
index 0bf95e68..9abe2541 100644
--- a/tmpl/ninegate-template.yml
+++ b/tmpl/ninegate-template.yml
@@ -30,6 +30,15 @@ parameters:
     %end if
     initpwdadmin: %%getVar("ninegate_pwdadmin", '')
 
+    # Force theme
+%if %%getVar("ninegate_forcetheme", 'non') == "oui" 
+    force_theme: true
+    force_themename: %%ninegate_forcethemename
+%else
+    force_theme: false
+    force_themename: 
+%end if
+
     # Activation module
 %if %%getVar("ninegate_activate_cron", 'non') == "oui"    
     cron_activate: true