diff --git a/libraries/AP_MSP/msp.h b/libraries/AP_MSP/msp.h
index b2cf93cb9a..ebe66148f6 100644
--- a/libraries/AP_MSP/msp.h
+++ b/libraries/AP_MSP/msp.h
@@ -8,12 +8,12 @@
 
 // define for enabling MSP sensor drivers
 #ifndef HAL_MSP_SENSORS_ENABLED
-#define HAL_MSP_SENSORS_ENABLED defined(HAL_MSP_ENABLED) && !HAL_MINIMIZE_FEATURES && !defined(HAL_BUILD_AP_PERIPH)
+#define HAL_MSP_SENSORS_ENABLED HAL_MSP_ENABLED && !HAL_MINIMIZE_FEATURES && !defined(HAL_BUILD_AP_PERIPH)
 #endif
 
 // define for enabling MSP DisplayPort
 #ifndef HAL_WITH_MSP_DISPLAYPORT
-#define HAL_WITH_MSP_DISPLAYPORT  defined(HAL_MSP_ENABLED) && !HAL_MINIMIZE_FEATURES && !defined(HAL_BUILD_AP_PERIPH)
+#define HAL_WITH_MSP_DISPLAYPORT  HAL_MSP_ENABLED && !HAL_MINIMIZE_FEATURES && !defined(HAL_BUILD_AP_PERIPH)
 #endif
 
 #include <AP_HAL/UARTDriver.h>