diff --git a/Builds/VisualStudio2013/RippleD.vcxproj b/Builds/VisualStudio2013/RippleD.vcxproj
index cf9b2059d..57cb67315 100644
--- a/Builds/VisualStudio2013/RippleD.vcxproj
+++ b/Builds/VisualStudio2013/RippleD.vcxproj
@@ -710,6 +710,9 @@
     <ClCompile Include="..\..\src\beast\beast\module\core\native\win32_SystemStats.cpp">
       <ExcludedFromBuild>True</ExcludedFromBuild>
     </ClCompile>
+    <ClCompile Include="..\..\src\beast\beast\module\core\native\win32_Threads.cpp">
+      <ExcludedFromBuild>True</ExcludedFromBuild>
+    </ClCompile>
     <ClInclude Include="..\..\src\beast\beast\module\core\streams\InputSource.h">
     </ClInclude>
     <ClCompile Include="..\..\src\beast\beast\module\core\streams\InputStream.cpp">
diff --git a/Builds/VisualStudio2013/RippleD.vcxproj.filters b/Builds/VisualStudio2013/RippleD.vcxproj.filters
index 7a04af48e..f91c2c325 100644
--- a/Builds/VisualStudio2013/RippleD.vcxproj.filters
+++ b/Builds/VisualStudio2013/RippleD.vcxproj.filters
@@ -1248,6 +1248,9 @@
     <ClCompile Include="..\..\src\beast\beast\module\core\native\win32_SystemStats.cpp">
       <Filter>beast\module\core\native</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\src\beast\beast\module\core\native\win32_Threads.cpp">
+      <Filter>beast\module\core\native</Filter>
+    </ClCompile>
     <ClInclude Include="..\..\src\beast\beast\module\core\streams\InputSource.h">
       <Filter>beast\module\core\streams</Filter>
     </ClInclude>
diff --git a/src/beast/beast/module/core/core.unity.cpp b/src/beast/beast/module/core/core.unity.cpp
index 4bb04f390..6aabe3a89 100644
--- a/src/beast/beast/module/core/core.unity.cpp
+++ b/src/beast/beast/module/core/core.unity.cpp
@@ -176,6 +176,7 @@
 #elif BEAST_WINDOWS
 #include <beast/module/core/native/win32_Files.cpp>
 #include <beast/module/core/native/win32_SystemStats.cpp>
+#include <beast/module/core/native/win32_Threads.cpp>
 
 #elif BEAST_LINUX
 #include <beast/module/core/native/linux_Files.cpp>