diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8d8719da3..d5439f122 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -145,6 +145,8 @@ elseif (WIN32)
 elseif (APPLE)
     set(_GLFW_COCOA 1)
     message(STATUS "Using Cocoa for window creation")
+    set(VK_USE_PLATFORM_METAL_EXT 1)
+    message(STATUS "Using VK_EXT_metal_surface")
 elseif (UNIX)
     set(_GLFW_X11 1)
     message(STATUS "Using X11 for window creation")