diff --git a/libraries/AP_HAL_ChibiOS/hwdef/f303-MatekGPS/hwdef.dat b/libraries/AP_HAL_ChibiOS/hwdef/f303-MatekGPS/hwdef.dat
index b50cc7669c..d4bcc27046 100644
--- a/libraries/AP_HAL_ChibiOS/hwdef/f303-MatekGPS/hwdef.dat
+++ b/libraries/AP_HAL_ChibiOS/hwdef/f303-MatekGPS/hwdef.dat
@@ -156,3 +156,6 @@ define ADSB_PORT hal.uartC
 define HAL_PERIPH_ENABLE_ADSB
 
 define HAL_MSP_ENABLED 1
+
+# the GPS is good at 10Hz
+define GPS_MAX_RATE_MS 100