diff --git a/bacnet-stack/bacenum.h b/bacnet-stack/bacenum.h
index e3ad5f2c..6c9a6930 100644
--- a/bacnet-stack/bacenum.h
+++ b/bacnet-stack/bacenum.h
@@ -931,7 +931,8 @@ typedef enum {
 
 typedef enum {
    COMMUNICATION_ENABLE = 0,
-   COMMUNICATION_DISABLE = 1
+   COMMUNICATION_DISABLE = 1,
+   COMMUNICATION_DISABLE_INITIATION = 2
 } BACNET_COMMUNICATION_ENABLE_DISABLE;
 
 typedef enum {