diff --git a/windows/msvc/sources.props b/windows/msvc/sources.props
index 4ea917552a1a3960e76430437f9e153516c02627..e35df83520f88b968b6b368934f49f6191c411e9 100644
--- a/windows/msvc/sources.props
+++ b/windows/msvc/sources.props
@@ -15,6 +15,7 @@
     <ClCompile Include="$(PyBaseDir)unix\modmachine.c" />
     <ClCompile Include="$(PyBaseDir)extmod\machine_mem.c" />
     <ClCompile Include="$(PyBaseDir)extmod\machine_pinbase.c" />
+    <ClCompile Include="$(PyBaseDir)extmod\machine_signal.c" />
     <ClCompile Include="$(PyBaseDir)extmod\modubinascii.c" />
     <ClCompile Include="$(PyBaseDir)extmod\moductypes.c" />
     <ClCompile Include="$(PyBaseDir)extmod\moduhashlib.c" />
@@ -24,6 +25,7 @@
     <ClCompile Include="$(PyBaseDir)extmod\modure.c" />
     <ClCompile Include="$(PyBaseDir)extmod\moduzlib.c" />
     <ClCompile Include="$(PyBaseDir)extmod\utime_mphal.c" />
+    <ClCompile Include="$(PyBaseDir)extmod\virtpin.c" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="$(PyBaseDir)py\*.h" />