diff --git a/msg/sensor_gps.msg b/msg/sensor_gps.msg
index 3e78c3156c..2b9519acc5 100644
--- a/msg/sensor_gps.msg
+++ b/msg/sensor_gps.msg
@@ -18,6 +18,7 @@ float32 hdop			# Horizontal dilution of precision
 float32 vdop			# Vertical dilution of precision
 
 int32 noise_per_ms		# GPS noise per millisecond
+uint16 automatic_gain_control   # Automatic gain control monitor
 int32 jamming_indicator		# indicates jamming is occurring
 uint8 jamming_state		# indicates whether jamming has been detected or suspected by the receivers. O: Unknown, 1: OK, 2: Warning, 3: Critical
 
diff --git a/src/drivers/gps/devices b/src/drivers/gps/devices
index 0acaf61852..8ba8d9f19c 160000
--- a/src/drivers/gps/devices
+++ b/src/drivers/gps/devices
@@ -1 +1 @@
-Subproject commit 0acaf6185245382389f7f6019cee6537d8f5a8e6
+Subproject commit 8ba8d9f19c2328955424d035d6ce5a08ef11a371