diff --git a/libretro-common/vfs/vfs_implementation_uwp.cpp b/libretro-common/vfs/vfs_implementation_uwp.cpp
index 6ed1da1cc8..f0acba472e 100644
--- a/libretro-common/vfs/vfs_implementation_uwp.cpp
+++ b/libretro-common/vfs/vfs_implementation_uwp.cpp
@@ -20,6 +20,8 @@
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
 
+#include <retro_environment.h>
+
 #include <ppl.h>
 #include <ppltasks.h>
 #include <stdio.h>
diff --git a/pkg/msvc-uwp/RetroArch-msvc2017-UWP/RetroArch-msvc2017-UWP.vcxproj b/pkg/msvc-uwp/RetroArch-msvc2017-UWP/RetroArch-msvc2017-UWP.vcxproj
index 839b2bb69c..8da7520bac 100644
--- a/pkg/msvc-uwp/RetroArch-msvc2017-UWP/RetroArch-msvc2017-UWP.vcxproj
+++ b/pkg/msvc-uwp/RetroArch-msvc2017-UWP/RetroArch-msvc2017-UWP.vcxproj
@@ -283,7 +283,14 @@
     <None Include="RetroArch-UWP_TemporaryKey.pfx" />
   </ItemGroup>
   <ItemGroup>
-    <ClCompile Include="..\..\..\libretro-common\vfs\vfs_implementation_uwp.cpp" />
+    <ClCompile Include="..\..\..\libretro-common\vfs\vfs_implementation_uwp.cpp">
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">VFS_FRONTEND;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\..\..\uwp\uwp_func.h" />
@@ -334,4 +341,4 @@
     <Import Project="$(VSINSTALLDIR)\Common7\IDE\Extensions\Microsoft\VsGraphics\MeshContentTask.targets" />
     <Import Project="$(VSINSTALLDIR)\Common7\IDE\Extensions\Microsoft\VsGraphics\ShaderGraphContentTask.targets" />
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file