diff --git a/dep/vulkan-loader/src/vulkan_loader.cpp b/dep/vulkan-loader/src/vulkan_loader.cpp
index d51376521..85aa688bb 100644
--- a/dep/vulkan-loader/src/vulkan_loader.cpp
+++ b/dep/vulkan-loader/src/vulkan_loader.cpp
@@ -12,7 +12,7 @@
 
 #include "vulkan_loader.h"
 
-#ifndef WIN32
+#ifndef _WIN32
 #include <dlfcn.h>
 #endif