diff --git a/resources/templates/provision/fanvil/x6/{$mac}.cfg b/resources/templates/provision/fanvil/x6/{$mac}.cfg
index 3ee52d0eae..5a50907884 100644
--- a/resources/templates/provision/fanvil/x6/{$mac}.cfg
+++ b/resources/templates/provision/fanvil/x6/{$mac}.cfg
@@ -1532,7 +1532,7 @@
     </web>
     <tr069>
         <TR069Tone>1</TR069Tone>
-        <CPESerialNumber>00100400FV02001000000c383e1ed418</CPESerialNumber>
+        <CPESerialNumber></CPESerialNumber>
         <ACSServerType>1</ACSServerType>
         <EnableTR069>0</EnableTR069>
         <ACSURL>0.0.0.0</ACSURL>