diff --git a/libraries/AP_HAL/AP_HAL_Boards.h b/libraries/AP_HAL/AP_HAL_Boards.h
index 318153d7b5..da3c5a0fa6 100644
--- a/libraries/AP_HAL/AP_HAL_Boards.h
+++ b/libraries/AP_HAL/AP_HAL_Boards.h
@@ -216,7 +216,7 @@
 #define HAL_INS_MPU60x0_I2C_BUS 2
 #define HAL_INS_MPU60x0_I2C_ADDR 0x68
 #define HAL_COMPASS_DEFAULT HAL_COMPASS_AK8963_I2C
-#define HAL_INS_AK8963_I2C_BUS 1
+#define HAL_COMPASS_AK8963_I2C_BUS 1
 #define HAL_COMPASS_AK8963_I2C_ADDR 0x0d
 #define HAL_BARO_DEFAULT HAL_BARO_MS5607_I2C
 #define HAL_BARO_MS5607_I2C_BUS 1