diff --git a/libraries/AP_HAL/board/linux.h b/libraries/AP_HAL/board/linux.h
index 66c1538b62..a7199a431f 100644
--- a/libraries/AP_HAL/board/linux.h
+++ b/libraries/AP_HAL/board/linux.h
@@ -373,6 +373,7 @@
 #define HAL_COMPASS_HMC5843_I2C_BUS 1
 #define HAL_COMPASS_HMC5843_I2C_ADDR 0x1E
 #define HAL_COMPASS_DEFAULT HAL_COMPASS_EDGE
+#define HAL_WITH_UAVCAN 1
 /* HMC5843 can be an external compass */
 #define HAL_COMPASS_HMC5843_I2C_BUS 1
 #define HAL_COMPASS_HMC5843_I2C_ADDR 0x1E