diff --git a/scripts/cmake/vcpkg_build_nmake.cmake b/scripts/cmake/vcpkg_build_nmake.cmake
index 2a251fded6..282e04f5f6 100755
--- a/scripts/cmake/vcpkg_build_nmake.cmake
+++ b/scripts/cmake/vcpkg_build_nmake.cmake
@@ -128,6 +128,7 @@ function(vcpkg_build_nmake)
     endif()
 
     vcpkg_backup_env_variables(VARS CL)
+    cmake_path(NATIVE_PATH CURRENT_PACKAGES_DIR NORMALIZE install_dir_native)
     foreach(build_type IN ITEMS debug release)
         if(NOT DEFINED VCPKG_BUILD_TYPE OR VCPKG_BUILD_TYPE STREQUAL build_type)
             if(build_type STREQUAL "debug")
@@ -136,7 +137,7 @@ function(vcpkg_build_nmake)
                 # Add install command and arguments
                 set(make_opts "${make_opts_base}")
                 if (arg_ENABLE_INSTALL)
-                    vcpkg_list(APPEND make_opts "INSTALLDIR=${CURRENT_PACKAGES_DIR}/debug")
+                    vcpkg_list(APPEND make_opts "INSTALLDIR=${install_dir_native}\\debug")
                 endif()
                 vcpkg_list(APPEND make_opts ${arg_OPTIONS} ${arg_OPTIONS_DEBUG})
                 set(ENV{CL} "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_DEBUG}")
@@ -147,7 +148,7 @@ function(vcpkg_build_nmake)
                 # Add install command and arguments
                 set(make_opts "${make_opts_base}")
                 if (arg_ENABLE_INSTALL)
-                    vcpkg_list(APPEND make_opts "INSTALLDIR=${CURRENT_PACKAGES_DIR}")
+                    vcpkg_list(APPEND make_opts "INSTALLDIR=${install_dir_native}")
                 endif()
                 vcpkg_list(APPEND make_opts ${arg_OPTIONS} ${arg_OPTIONS_RELEASE})