diff --git a/src/modules/sensors/CMakeLists.txt b/src/modules/sensors/CMakeLists.txt
index 0d498032dd..fdfc2dd774 100644
--- a/src/modules/sensors/CMakeLists.txt
+++ b/src/modules/sensors/CMakeLists.txt
@@ -37,7 +37,7 @@ px4_add_module(
 	STACK 1200
 	COMPILE_FLAGS
 		-Wno-type-limits
-		-Os
+		-O3
 	SRCS
 		sensors.cpp
 		sensor_params.c