diff --git a/CMakeLists.txt b/CMakeLists.txt
index 91de839b42..a694590e1e 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -185,6 +185,8 @@ if((CMAKE_BUILD_TYPE STREQUAL "Debug") OR (CMAKE_BUILD_TYPE STREQUAL "Coverage")
 	set(MAX_CUSTOM_OPT_LEVEL -O0)
 elseif(CMAKE_BUILD_TYPE MATCHES "Sanitizer")
 	set(MAX_CUSTOM_OPT_LEVEL -O1)
+elseif(CMAKE_BUILD_TYPE MATCHES "Release")
+	set(MAX_CUSTOM_OPT_LEVEL -O3)
 else()
 	if(px4_constrained_flash_build)
 		set(MAX_CUSTOM_OPT_LEVEL -Os)