diff --git a/CMakeLists.txt b/CMakeLists.txt
index c8f221c..fa367e9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,8 @@ project(mrs_uav_hw_api)
 set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wall -Wextra")
+add_definitions(-Wall)
+add_definitions(-Wextra)
 
 if(COVERAGE)
   message(WARNING "building with --coverage, the performance might be limited")