diff --git a/libraries/AP_HAL/AP_HAL_Boards.h b/libraries/AP_HAL/AP_HAL_Boards.h
index d24ebb8847..aba46ca6f7 100644
--- a/libraries/AP_HAL/AP_HAL_Boards.h
+++ b/libraries/AP_HAL/AP_HAL_Boards.h
@@ -229,6 +229,7 @@
 #define HAL_FLOW_PX4_MAX_FLOW_PIXEL 4
 #define HAL_FLOW_PX4_BOTTOM_FLOW_FEATURE_THRESHOLD 30
 #define HAL_FLOW_PX4_BOTTOM_FLOW_VALUE_THRESHOLD 5000
+#define HAL_PARAM_DEFAULTS_PATH "/etc/arducopter/bebop.parm"
 /* focal length 3.6 um, 2x binning in each direction
  * 240x240 crop rescaled to 64x64 */
 #define HAL_FLOW_PX4_FOCAL_LENGTH_MILLIPX (2.5 / (3.6 * 2.0 * 240 / 64))