diff --git a/third-party/CMakeLists.txt b/third-party/CMakeLists.txt
index e7e30913e38..9a3b4f97b94 100644
--- a/third-party/CMakeLists.txt
+++ b/third-party/CMakeLists.txt
@@ -1,9 +1,9 @@
 string(REPLACE ${PROJECT_SOURCE_DIR}/ "" _rel_path ${CMAKE_CURRENT_LIST_DIR})
 
 if (MSVC)
-    set_directory_properties(PROPERTIES COMPILE_FLAGS "/W0") # ignore warnings on third party
+    add_compile_options(/W0) # ignore warnings on third party
 elseif (CMAKE_CXX_COMPILER_ID STREQUAL "GNU")
-   set_directory_properties(PROPERTIES COMPILE_FLAGS "-w")
+   add_compile_options(-w)
 endif()
 
 include(CMake/external_json.cmake)