diff --git a/iceoryx_posh/cmake/cpptoml/CMakeLists.txt b/iceoryx_posh/cmake/cpptoml/CMakeLists.txt
index 42e79d98fb..e770e4fdba 100644
--- a/iceoryx_posh/cmake/cpptoml/CMakeLists.txt
+++ b/iceoryx_posh/cmake/cpptoml/CMakeLists.txt
@@ -59,7 +59,9 @@ file(MAKE_DIRECTORY ${BUILD_DIR})
 
 set(CMAKE_ADDITIONAL_OPTIONS
     "-DCMAKE_C_FLAGS_INIT=${CMAKE_C_FLAGS_INIT}"
+    "-DCMAKE_C_FLAGS=${CMAKE_C_FLAGS}"
     "-DCMAKE_CXX_FLAGS_INIT=${CMAKE_CXX_FLAGS_INIT}"
+    "-DCMAKE_CXX_FLAGS=${CMAKE_CXX_FLAGS}"
     "-DCMAKE_C_COMPILER=${CMAKE_C_COMPILER}"
     "-DCMAKE_C_COMPILER_TARGET=${CMAKE_C_COMPILER_TARGET}"
     "-DCMAKE_CXX_COMPILER=${CMAKE_CXX_COMPILER}"