1 files changed, 2 insertions, 2 deletions
diff --git a/run.cmd b/run.cmd
index 03f79cad46..295604bbd0 100644
--- a/run.cmd
+++ b/run.cmd
@@ -23,11 +23,11 @@ if defined VisualStudioVersion (
 
 set _VSWHERE="%ProgramFiles(x86)%\Microsoft Visual Studio\Installer\vswhere.exe"
 if exist %_VSWHERE% (
-  for /f "usebackq tokens=*" %%i in (`%_VSWHERE% -latest -property installationPath`) do set _VSCOMNTOOLS=%%i\Common7\Tools
+  for /f "usebackq tokens=*" %%i in (`%_VSWHERE% -latest -prerelease -property installationPath`) do set _VSCOMNTOOLS=%%i\Common7\Tools
 )
 if not exist "%_VSCOMNTOOLS%" set _VSCOMNTOOLS=%VS140COMNTOOLS%
 if not exist "%_VSCOMNTOOLS%" (
-  echo Error: Visual Studio 2015 or 2017 required.
+  echo %__MsgPrefix%Error: Visual Studio 2015 or 2017 required.
   echo        Please see https://github.com/dotnet/corefx/blob/master/Documentation/project-docs/developer-guide.md for build instructions.
   exit /b 1
 )