diff --git a/src/main/drivers/bus.h b/src/main/drivers/bus.h
index 67ea0b83de..1736c2d870 100644
--- a/src/main/drivers/bus.h
+++ b/src/main/drivers/bus.h
@@ -43,8 +43,6 @@ typedef struct busDevice_s {
 #define BUSTYPE_I2C  1
 #define BUSTYPE_SPI  2
 
-#define BUSDEV(pBusdev) &((pBusdev)->busDevice_u)
-
 #ifdef TARGET_BUS_INIT
 void targetBusInit(void);
 #endif