diff --git a/test/vs2015/etl.vcxproj.filters b/test/vs2015/etl.vcxproj.filters
index 5449213a..76e18a9c 100644
--- a/test/vs2015/etl.vcxproj.filters
+++ b/test/vs2015/etl.vcxproj.filters
@@ -492,6 +492,9 @@
     <ClInclude Include="..\..\src\test2.h">
       <Filter>Header Files</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\src\debounce.h">
+      <Filter>ETL\Utilities</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\..\..\unittest-cpp\UnitTest++\AssertException.cpp">
@@ -755,6 +758,9 @@
     <ClCompile Include="..\..\src\error_handler.cpp">
       <Filter>ETL\Utilities</Filter>
     </ClCompile>
+    <ClCompile Include="..\test_debounce.cpp">
+      <Filter>Source Files</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\Doxyfile">