diff --git a/utils.inc.php b/utils.inc.php
index a26dd8d..e9fbdca 100644
--- a/utils.inc.php
+++ b/utils.inc.php
@@ -232,8 +232,12 @@ function copyYesWikiFiles($domain, $user, $dbUser)
     exec($sudo.'mv '.$destDir.'/doryphore/* '.$destDir.'/');
     exec($sudo.'rm -rf '.$destDir.'/doryphore');
     unlink($tmpFile);
-    $curl = 'curl -X POST --insecure --data-urlencode \'config[default_language]=fr\' --data-urlencode \'config[wakka_name]='.$domain.'\' --data-urlencode \'config[root_page]=PagePrincipale\' --data-urlencode \'config[mysql_host]=localhost\' --data-urlencode \'config[mysql_database]='.$dbUser['database'].'\' --data-urlencode \'config[mysql_user]='.$dbUser['user'].'\' --data-urlencode \'config[mysql_password]='.$dbUser['password'].'\' --data-urlencode \'config[table_prefix]=yeswiki_\' --data-urlencode \'admin_name='.$_SERVER['admin_id'].'\' --data-urlencode \'admin_password='.$_SERVER['admin_password'].'\' --data-urlencode \'admin_password_conf='.$_SERVER['admin_password'].'\' --data-urlencode \'admin_email='.$_SERVER['admin_email'].'\' --data-urlencode \'config[rewrite_mode]=1\' --data-urlencode \'submit=Continue\' \'https://'.$domain.'/?PagePrincipale&installAction=install\'';
-    exec($curl);
+
+    # we wait 10 seconds before launching install
+    echo "\nEn attente de dézippage\n";
+    echo exec('sleep 10');
+    $curl = 'curl -X POST --insecure --data-urlencode \'config[default_language]=fr\' --data-urlencode \'config[wakka_name]='.$domain.'\' --data-urlencode \'config[root_page]=PagePrincipale\' --data-urlencode \'config[mysql_host]=localhost\' --data-urlencode \'config[mysql_database]='.$dbUser['database'].'\' --data-urlencode \'config[mysql_user]='.$dbUser['user'].'\' --data-urlencode \'config[mysql_password]='.$dbUser['password'].'\' --data-urlencode \'config[table_prefix]=yeswiki_\' --data-urlencode \'admin_name='.$_SERVER['admin_id'].'\' --data-urlencode \'admin_password='.$_SERVER['admin_password'].'\' --data-urlencode \'admin_password_conf='.$_SERVER['admin_password'].'\' --data-urlencode \'admin_email='.$_SERVER['admin_email'].'\' --data-urlencode \'config[rewrite_mode]=1\' --data-urlencode \'submit=Continue\' \'https://'.$domain.'/?PagePrincipale&installAction=install\' 2>&1';
+    echo exec($curl);
 
     return;
 }