diff --git a/CMakeLists.txt b/CMakeLists.txt
index 17c7e03..f779dd8 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -4,7 +4,8 @@ project(mrs_multirotor_simulator)
 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)
 
 set(CATKIN_DEPENDENCIES
   cmake_modules