diff --git a/renderdoc/driver/vulkan/vk_core.h b/renderdoc/driver/vulkan/vk_core.h
index 94d4aeef4..bb0e2d42c 100644
--- a/renderdoc/driver/vulkan/vk_core.h
+++ b/renderdoc/driver/vulkan/vk_core.h
@@ -511,7 +511,7 @@ private:
 				const char*                                 pLayerPrefix,
 				const char*                                 pMessage);
 	
-	static VkBool32 DebugCallbackStatic(
+	static VkBool32 VKAPI_PTR DebugCallbackStatic(
 				VkDebugReportFlagsEXT                       flags,
 				VkDebugReportObjectTypeEXT                  objectType,
 				uint64_t                                    object,
diff --git a/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp b/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
index 2892946cb..a2ed6eee9 100644
--- a/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
+++ b/renderdoc/driver/vulkan/wrappers/vk_device_funcs.cpp
@@ -117,7 +117,7 @@ void WrappedVulkan::Initialise(VkInitParams &params)
 		VkDebugReportCallbackCreateInfoEXT debugInfo = {};
 		debugInfo.sType = VK_STRUCTURE_TYPE_DEBUG_REPORT_CREATE_INFO_EXT;
 		debugInfo.pNext = NULL;
-		debugInfo.pfnCallback = (PFN_vkDebugReportCallbackEXT)&DebugCallbackStatic;
+		debugInfo.pfnCallback = &DebugCallbackStatic;
 		debugInfo.pUserData = this;
 		debugInfo.flags = VK_DEBUG_REPORT_WARN_BIT_EXT|VK_DEBUG_REPORT_PERF_WARN_BIT_EXT|VK_DEBUG_REPORT_ERROR_BIT_EXT;