diff --git a/resources/templates/provision/yealink/t38g/{$mac}.cfg b/resources/templates/provision/yealink/t38g/{$mac}.cfg
index a0e64f99af..8f4c01cc32 100644
--- a/resources/templates/provision/yealink/t38g/{$mac}.cfg
+++ b/resources/templates/provision/yealink/t38g/{$mac}.cfg
@@ -1,4 +1,5 @@
 #!version:1.0.0.1
+#{$microtime}
 
 ##File header "#!version:1.0.0.1" can not be edited or deleted.##