diff --git a/Base/needed.xml b/Base/needed.xml
index 29018bd..a964f79 100644
--- a/Base/needed.xml
+++ b/Base/needed.xml
@@ -31,4 +31,9 @@
   <Group name="interfaces.local">
     <ConfigFile name="/etc/network/interfaces"/>
   </Group>
+
+  <Group name="nfs">
+    <!-- fping est necessaire pour le script attendre-vert -->
+    <Package name="fping"/>
+  </Group>
 </Base>