diff --git a/icu4c/source/test/intltest/intltest.vcxproj b/icu4c/source/test/intltest/intltest.vcxproj
index 60f455d51d..c0ec72e534 100644
--- a/icu4c/source/test/intltest/intltest.vcxproj
+++ b/icu4c/source/test/intltest/intltest.vcxproj
@@ -1,4 +1,4 @@
-<?xml version="1.0" encoding="utf-8"?>
+<?xml version="1.0" encoding="utf-8"?>
 <Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <ItemGroup Label="ProjectConfigurations">
     <ProjectConfiguration Include="Debug|Win32">
@@ -296,7 +296,9 @@
     <ClCompile Include="dtfmrgts.cpp" />
     <ClCompile Include="dtfmtrtts.cpp" />
     <ClCompile Include="dtfmttst.cpp" />
-    <ClCompile Include="dtifmtts.cpp" />
+    <ClCompile Include="dtifmtts.cpp”>
+      <DisableLanguageExtensions>false</DisableLanguageExtensions>
+    </ClCompile>
     <ClCompile Include="dtptngts.cpp" />
     <ClCompile Include="fldset.cpp" />
     <ClCompile Include="genderinfotest.cpp" />