diff --git a/test/vs2019/etl.vcxproj b/test/vs2019/etl.vcxproj
index 2152c79d..89c95188 100644
--- a/test/vs2019/etl.vcxproj
+++ b/test/vs2019/etl.vcxproj
@@ -7790,6 +7790,7 @@
     <ClCompile Include="..\test_alignment.cpp" />
     <ClCompile Include="..\test_atomic_clang_sync.cpp" />
     <ClCompile Include="..\test_atomic_gcc_sync.cpp" />
+    <ClCompile Include="..\test_bit.cpp" />
     <ClCompile Include="..\test_bresenham_line.cpp" />
     <ClCompile Include="..\test_buffer_descriptors.cpp" />
     <ClCompile Include="..\test_byte_stream.cpp" />
diff --git a/test/vs2019/etl.vcxproj.filters b/test/vs2019/etl.vcxproj.filters
index 089811e6..5fabac2f 100644
--- a/test/vs2019/etl.vcxproj.filters
+++ b/test/vs2019/etl.vcxproj.filters
@@ -3086,6 +3086,9 @@
     <ClCompile Include="..\test_delegate_service_cpp03.cpp">
       <Filter>Tests</Filter>
     </ClCompile>
+    <ClCompile Include="..\test_bit.cpp">
+      <Filter>Tests</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <None Include="..\..\library.properties">