diff --git a/src/modules/mavlink/mavlink_messages.cpp b/src/modules/mavlink/mavlink_messages.cpp
index 0325b58e78..9c666f6703 100644
--- a/src/modules/mavlink/mavlink_messages.cpp
+++ b/src/modules/mavlink/mavlink_messages.cpp
@@ -601,7 +601,6 @@ protected:
 			/* battery status message with higher resolution */
 			mavlink_battery_status_t bat_msg;
 			bat_msg.id = 0;
-			bat_msg.id = 0;
 			bat_msg.battery_function = MAV_BATTERY_FUNCTION_ALL;
 			bat_msg.type = MAV_BATTERY_TYPE_LIPO;
 			bat_msg.temperature = INT16_MAX;