diff --git a/master/voe_handler.c b/master/voe_handler.c
index d8ee6411..43232f7f 100644
--- a/master/voe_handler.c
+++ b/master/voe_handler.c
@@ -46,7 +46,7 @@
 
 /** VoE mailbox type.
  */
-#define EC_MBOX_TYPE_VOE 0xff
+#define EC_MBOX_TYPE_VOE 0x0f
 
 /** VoE header size.
  */