diff --git a/vs/2013/libobs/libobs.vcxproj b/vs/2013/libobs/libobs.vcxproj
index 5a5abd087081cea35edc044578c8daef306d1b9f..ca805e4e40e60347afda7f3801bab107bc2299d1 100644
--- a/vs/2013/libobs/libobs.vcxproj
+++ b/vs/2013/libobs/libobs.vcxproj
@@ -119,6 +119,7 @@
     <ClCompile Include="..\..\..\libobs\util\platform-windows.c" />
     <ClCompile Include="..\..\..\libobs\util\platform.c" />
     <ClCompile Include="..\..\..\libobs\util\text-lookup.c" />
+    <ClCompile Include="..\..\..\libobs\util\threading-windows.c" />
     <ClCompile Include="..\..\..\libobs\util\utf8.c" />
   </ItemGroup>
   <PropertyGroup Label="Globals">
diff --git a/vs/2013/libobs/libobs.vcxproj.filters b/vs/2013/libobs/libobs.vcxproj.filters
index ec188c236f5b73cd245f06eb3fa7e7ba07f61c25..6c33ebd9d189238aaa24f43c76fc019a5cf12fc5 100644
--- a/vs/2013/libobs/libobs.vcxproj.filters
+++ b/vs/2013/libobs/libobs.vcxproj.filters
@@ -359,5 +359,8 @@
     <ClCompile Include="..\..\..\libobs\media-io\video-frame.c">
       <Filter>media-io\Source Files</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\libobs\util\threading-windows.c">
+      <Filter>util\Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
 </Project>
\ No newline at end of file