diff --git a/tools/run_tests/pre_build_c.bat b/tools/run_tests/pre_build_c.bat
index ac8a375ad7d..f0449f3c424 100644
--- a/tools/run_tests/pre_build_c.bat
+++ b/tools/run_tests/pre_build_c.bat
@@ -8,7 +8,7 @@ cd /d %~dp0\..\..
 @rem Location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
 
-if exists %NUGET% (
+if exist %NUGET% (
   %NUGET% restore vsprojects/grpc.sln || goto :error
 )
 
diff --git a/tools/run_tests/pre_build_csharp.bat b/tools/run_tests/pre_build_csharp.bat
index f5890c27431..853a8f43255 100644
--- a/tools/run_tests/pre_build_csharp.bat
+++ b/tools/run_tests/pre_build_csharp.bat
@@ -8,7 +8,7 @@ cd /d %~dp0\..\..
 @rem Location of nuget.exe
 set NUGET=C:\nuget\nuget.exe
 
-if exists %NUGET% (
+if exist %NUGET% (
   %NUGET% restore vsprojects/grpc_csharp_ext.sln || goto :error
   %NUGET% restore src/csharp/Grpc.sln || goto :error
 )