diff --git a/windows/base/Dockerfile b/windows/base/Dockerfile
index bf2be3b5e37f221f6be360654cfc994eb0b27169..266f27146084a4e8a00b84c307869690f6776864 100644
--- a/windows/base/Dockerfile
+++ b/windows/base/Dockerfile
@@ -52,10 +52,9 @@ RUN $vcpkg_dir = 'C:/ProgramData/vcpkg'; \
     ./scripts/bootstrap.ps1 -disableMetrics; \
     $vcpkg_target_triplet = 'x64-windows-14.16'; \
     [Environment]::SetEnvironmentVariable('VCPKG_DIR', "\"$vcpkg_dir\"", [EnvironmentVariableTarget]::Machine); \
-    [Environment]::SetEnvironmentVariable('VCPKG_TRIPLET', "\"$vcpkg_target_triplet\"", [EnvironmentVariableTarget]::Machine); \
     [Environment]::SetEnvironmentVariable('VCPKG_TARGET_TRIPLET', "\"$vcpkg_target_triplet\"", [EnvironmentVariableTarget]::Machine); \
     [Environment]::SetEnvironmentVariable('CMAKE_TOOLCHAIN_FILE', "\"$vcpkg_dir/scripts/buildsystems/vcpkg.cmake\"", [EnvironmentVariableTarget]::Machine); \
-    [Environment]::SetEnvironmentVariable('VCPKG_INSTALL_DIR', "\"$vcpkg_dir/installed/$vcpkg_triplet\"", [EnvironmentVariableTarget]::Machine);
+    [Environment]::SetEnvironmentVariable('VCPKG_INSTALL_DIR', "\"$vcpkg_dir/installed/$vcpkg_target_triplet\"", [EnvironmentVariableTarget]::Machine);
 ADD powershell/30-Vcpkg-CMake.ps1 /Windows/System32/WindowsPowerShell/v1.0/profile.d/30-Vcpkg-CMake.ps1
 
 RUN cd $env:VCPKG_DIR; \