diff --git a/libraries/AP_InertialSensor/AP_InertialSensor.cpp b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
index dda32f12c4..f3ef1a89af 100644
--- a/libraries/AP_InertialSensor/AP_InertialSensor.cpp
+++ b/libraries/AP_InertialSensor/AP_InertialSensor.cpp
@@ -666,12 +666,12 @@ AP_InertialSensor::detect_backends(void)
     _add_backend(AP_InertialSensor_HIL::detect(*this));
 #elif HAL_INS_DEFAULT == HAL_INS_MPU60XX_SPI && defined(HAL_INS_DEFAULT_ROTATION)
     _add_backend(AP_InertialSensor_MPU6000::probe(*this, hal.spi->get_device(HAL_INS_MPU60x0_NAME),
-                                                  HAL_INS_DEFAULT_ROTATION);
+                                                  HAL_INS_DEFAULT_ROTATION));
 #elif HAL_INS_DEFAULT == HAL_INS_MPU60XX_SPI
     _add_backend(AP_InertialSensor_MPU6000::probe(*this, hal.spi->get_device(HAL_INS_MPU60x0_NAME)));
 #elif HAL_INS_DEFAULT == HAL_INS_MPU60XX_I2C && defined(HAL_INS_DEFAULT_ROTATION)
     _add_backend(AP_InertialSensor_MPU6000::probe(*this, hal.i2c_mgr->get_device(HAL_INS_MPU60x0_I2C_BUS, HAL_INS_MPU60x0_I2C_ADDR),
-                                                  HAL_INS_DEFAULT_ROTATION);
+                                                  HAL_INS_DEFAULT_ROTATION));
 #elif HAL_INS_DEFAULT == HAL_INS_MPU60XX_I2C
     _add_backend(AP_InertialSensor_MPU6000::probe(*this, hal.i2c_mgr->get_device(HAL_INS_MPU60x0_I2C_BUS, HAL_INS_MPU60x0_I2C_ADDR)));
 #elif HAL_INS_DEFAULT == HAL_INS_BH