diff --git a/libraries/AP_Compass/AP_Compass_AK8963.h b/libraries/AP_Compass/AP_Compass_AK8963.h
index 033b8b580f..9b4a3f0ffc 100644
--- a/libraries/AP_Compass/AP_Compass_AK8963.h
+++ b/libraries/AP_Compass/AP_Compass_AK8963.h
@@ -80,9 +80,6 @@ private:
     uint8_t             _magnetometer_adc_resolution;
     uint32_t            _last_update_timestamp;
     uint32_t            _last_accum_time;
-
-    AP_HAL::Semaphore   *_spi_sem;
-    AP_HAL::SPIDeviceDriver   *_spi;
 };
 
 #endif