diff --git a/bacnet-stack/include/datalink.h b/bacnet-stack/include/datalink.h
index 7a5c4716..892999a1 100644
--- a/bacnet-stack/include/datalink.h
+++ b/bacnet-stack/include/datalink.h
@@ -71,7 +71,7 @@
 #include "bvlc.h"
 
 #define datalink_init bip_init
-#ifdef BBMD_ENABLED
+#if defined(BBMD_ENABLED) && BBMD_ENABLED
 #define datalink_send_pdu bvlc_send_pdu
 #define datalink_receive bvlc_receive
 #else