diff --git a/icu4c/source/test/intltest/intltest.vcxproj b/icu4c/source/test/intltest/intltest.vcxproj
index eca085ddf15..7402c5c4c04 100644
--- a/icu4c/source/test/intltest/intltest.vcxproj
+++ b/icu4c/source/test/intltest/intltest.vcxproj
@@ -230,6 +230,7 @@
     <ClCompile Include="colldata.cpp">
       <DisableLanguageExtensions>false</DisableLanguageExtensions>
     </ClCompile>
+    <ClCompile Include="numfmtspectest.cpp" />
     <ClCompile Include="regiontst.cpp" />
     <ClCompile Include="ucharstrietest.cpp" />
     <ClCompile Include="itrbbi.cpp" />
@@ -571,4 +572,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/icu4c/source/test/intltest/intltest.vcxproj.filters b/icu4c/source/test/intltest/intltest.vcxproj.filters
index a0193c78b8a..db1669ee3ba 100644
--- a/icu4c/source/test/intltest/intltest.vcxproj.filters
+++ b/icu4c/source/test/intltest/intltest.vcxproj.filters
@@ -469,6 +469,9 @@
     <ClCompile Include="collationtest.cpp">
       <Filter>collation</Filter>
     </ClCompile>
+    <ClCompile Include="numfmtspectest.cpp">
+      <Filter>formatting</Filter>
+    </ClCompile>
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="itrbbi.h">
@@ -839,4 +842,4 @@
       <Filter>formatting</Filter>
     </ClInclude>
   </ItemGroup>
-</Project>
+</Project>
\ No newline at end of file