diff --git a/src/modules/mavlink/CMakeLists.txt b/src/modules/mavlink/CMakeLists.txt
index 76d89e6b1d..0fb2205143 100644
--- a/src/modules/mavlink/CMakeLists.txt
+++ b/src/modules/mavlink/CMakeLists.txt
@@ -36,8 +36,8 @@ include_directories(${PX4_SOURCE_DIR}/mavlink/include/mavlink)
 px4_add_module(
 	MODULE modules__mavlink
 	MAIN mavlink
-	STACK_MAIN 2000
-	STACK_MAX 2500
+	STACK_MAIN 1200
+	STACK_MAX 1500
 	COMPILE_FLAGS
 	SRCS
 		mavlink.c