diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 003b252834071..0aac123b5eee6 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -63,6 +63,7 @@
 #define HCI_SDIO	6
 #define HCI_SPI		7
 #define HCI_I2C		8
+#define HCI_SMD		9
 
 /* HCI controller types */
 #define HCI_PRIMARY	0x00