diff --git a/test/vs2022/etl.vcxproj b/test/vs2022/etl.vcxproj
index 0e0b6601..57fee1e8 100644
--- a/test/vs2022/etl.vcxproj
+++ b/test/vs2022/etl.vcxproj
@@ -3541,6 +3541,7 @@
     <ClInclude Include="..\..\include\etl\crc8_wcdma.h" />
     <ClInclude Include="..\..\include\etl\delegate_observable.h" />
     <ClInclude Include="..\..\include\etl\expected.h" />
+    <ClInclude Include="..\..\include\etl\format.h" />
     <ClInclude Include="..\..\include\etl\function_traits.h" />
     <ClInclude Include="..\..\include\etl\gcd.h" />
     <ClInclude Include="..\..\include\etl\generators\fsm_cpp03_generator.h" />