diff --git a/sdk/core/azure-core/inc/azure/core/internal/hkeyholder.hpp b/sdk/core/azure-core/inc/azure/core/internal/hkeyholder.hpp
index d081370bf..0825ced25 100644
--- a/sdk/core/azure-core/inc/azure/core/internal/hkeyholder.hpp
+++ b/sdk/core/azure-core/inc/azure/core/internal/hkeyholder.hpp
@@ -8,6 +8,8 @@
  */
 #pragma once
 
+#include "azure/core/platform.hpp"
+
 #if defined(AZ_PLATFORM_WINDOWS)
 #if !defined(WIN32_LEAN_AND_MEAN)
 #define WIN32_LEAN_AND_MEAN
@@ -18,6 +20,9 @@
 
 #include <windows.h>
 
+#if !defined(WINAPI_PARTITION_DESKTOP) \
+    || WINAPI_PARTITION_DESKTOP // See azure/core/platform.hpp for explanation.
+
 namespace Azure { namespace Core { namespace Internal {
 
   /**
@@ -56,3 +61,5 @@ namespace Azure { namespace Core { namespace Internal {
 }}} // namespace Azure::Core::Internal
 
 #endif
+
+#endif