diff --git a/src/modules/mavlink/mavlink_main.cpp b/src/modules/mavlink/mavlink_main.cpp
index 505bc8745d..851cabb598 100644
--- a/src/modules/mavlink/mavlink_main.cpp
+++ b/src/modules/mavlink/mavlink_main.cpp
@@ -2726,7 +2726,7 @@ Mavlink::start(int argc, char *argv[])
 	px4_task_spawn_cmd(buf,
 			   SCHED_DEFAULT,
 			   SCHED_PRIORITY_DEFAULT,
-			   2848 + MAVLINK_NET_ADDED_STACK,
+			   2650 + MAVLINK_NET_ADDED_STACK,
 			   (px4_main_t)&Mavlink::start_helper,
 			   (char *const *)argv);