diff --git a/libpEpAdapter/libpEpAdapter.vcxproj b/libpEpAdapter/libpEpAdapter.vcxproj
index a892b2b..c6b3e7e 100644
--- a/libpEpAdapter/libpEpAdapter.vcxproj
+++ b/libpEpAdapter/libpEpAdapter.vcxproj
@@ -111,6 +111,7 @@ XCOPY "$(SolutionDir)libpEpAdapter\*.hxx" "$(SolutionDir)pEp\" /I/F/Y
     <ClInclude Include="..\passphrase_cache.hh" />
     <ClInclude Include="..\passphrase_cache.hxx" />
     <ClInclude Include="..\pc_container.hh" />
+    <ClInclude Include="..\Semaphore.hh" />
     <ClInclude Include="..\slurp.hh" />
     <ClInclude Include="..\status_to_string.hh" />
   </ItemGroup>
diff --git a/libpEpAdapter/libpEpAdapter.vcxproj.filters b/libpEpAdapter/libpEpAdapter.vcxproj.filters
index 9c5497b..d40aa0e 100644
--- a/libpEpAdapter/libpEpAdapter.vcxproj.filters
+++ b/libpEpAdapter/libpEpAdapter.vcxproj.filters
@@ -65,5 +65,8 @@
     <ClInclude Include="..\callback_dispatcher.hh">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\Semaphore.hh">
+      <Filter>Header Files</Filter>
+    </ClInclude>
   </ItemGroup>
 </Project>
\ No newline at end of file