diff --git a/CMakeLists.txt b/CMakeLists.txt
index f8912d47..82a45201 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -267,6 +267,9 @@ endif()
 target_include_directories(pp_platform_apple
     PUBLIC
         "${CMAKE_CURRENT_SOURCE_DIR}/src")
+target_include_directories(pp_platform_apple
+    PRIVATE
+        ${PP_LEGACY_INCLUDE_DIRS})
 target_link_libraries(pp_platform_apple
     PUBLIC
         pp_platform_api