1 files changed, 2 insertions, 0 deletions
diff --git a/src/ao.h b/src/ao.h
index 2c6eb2b9..d6be2223 100644
--- a/src/ao.h
+++ b/src/ao.h
@@ -731,6 +731,8 @@ ao_serial_init(void);
 #define AO_GPS_RUNNING		(1 << 5)
 #define AO_GPS_DATE_VALID	(1 << 6)
 
+extern __xdata uint16_t ao_gps_tick;
+
 struct ao_gps_data {
 	uint8_t			year;
 	uint8_t			month;