diff --git a/include/vulkan/vk_layer.h b/include/vulkan/vk_layer.h
index 823c88a..fa76520 100644
--- a/include/vulkan/vk_layer.h
+++ b/include/vulkan/vk_layer.h
@@ -82,7 +82,8 @@ typedef VkResult(VKAPI_PTR *PFN_PhysDevExt)(VkPhysicalDevice phys_device);
  */
 typedef enum VkLayerFunction_ {
     VK_LAYER_LINK_INFO = 0,
-    VK_LOADER_DATA_CALLBACK = 1
+    VK_LOADER_DATA_CALLBACK = 1,
+    VK_LOADER_LAYER_CREATE_DEVICE_CALLBACK = 2
 } VkLayerFunction;
 
 typedef struct VkLayerInstanceLink_ {
@@ -107,7 +108,9 @@ typedef VkResult (VKAPI_PTR *PFN_vkSetInstanceLoaderData)(VkInstance instance,
         void *object);
 typedef VkResult (VKAPI_PTR *PFN_vkSetDeviceLoaderData)(VkDevice device,
         void *object);
-
+typedef VkResult (VKAPI_PTR *PFN_vkLayerCreateDevice)(VkInstance instance, VkPhysicalDevice physicalDevice, const VkDeviceCreateInfo *pCreateInfo,
+						      const VkAllocationCallbacks *pAllocator, VkDevice *pDevice, PFN_vkGetInstanceProcAddr layerGIPA, PFN_vkGetDeviceProcAddr *nextGDPA);
+typedef void (VKAPI_PTR *PFN_vkLayerDestroyDevice)(VkDevice physicalDevice, const VkAllocationCallbacks *pAllocator, PFN_vkDestroyDevice destroyFunction);
 typedef struct {
     VkStructureType sType; // VK_STRUCTURE_TYPE_LOADER_INSTANCE_CREATE_INFO
     const void *pNext;
@@ -115,6 +118,10 @@ typedef struct {
     union {
         VkLayerInstanceLink *pLayerInfo;
         PFN_vkSetInstanceLoaderData pfnSetInstanceLoaderData;
+        struct {
+	  PFN_vkLayerCreateDevice pfnLayerCreateDevice;
+	  PFN_vkLayerDestroyDevice pfnLayerDestroyDevice;
+	} layerDevice;
     } u;
 } VkLayerInstanceCreateInfo;