diff --git a/scripts/cmake/vcpkg_configure_cmake.cmake b/scripts/cmake/vcpkg_configure_cmake.cmake
index 1c3a26a74d..c31955fb25 100644
--- a/scripts/cmake/vcpkg_configure_cmake.cmake
+++ b/scripts/cmake/vcpkg_configure_cmake.cmake
@@ -72,14 +72,11 @@ function(vcpkg_configure_cmake)
     endif()
 
     if(CMAKE_HOST_WIN32)
-        set(_PATHSEP ";")
         if(DEFINED ENV{PROCESSOR_ARCHITEW6432})
             set(_csc_HOST_ARCHITECTURE $ENV{PROCESSOR_ARCHITEW6432})
         else()
             set(_csc_HOST_ARCHITECTURE $ENV{PROCESSOR_ARCHITECTURE})
         endif()
-    else()
-        set(_PATHSEP ":")
     endif()
 
     set(NINJA_CAN_BE_USED ON) # Ninja as generator
@@ -154,7 +151,7 @@ function(vcpkg_configure_cmake)
     if(GENERATOR STREQUAL "Ninja")
         vcpkg_find_acquire_program(NINJA)
         get_filename_component(NINJA_PATH ${NINJA} DIRECTORY)
-        set(ENV{PATH} "$ENV{PATH}${_PATHSEP}${NINJA_PATH}")
+        vcpkg_add_to_path("${NINJA_PATH}")
         list(APPEND _csc_OPTIONS "-DCMAKE_MAKE_PROGRAM=${NINJA}")
     endif()
 
@@ -265,7 +262,7 @@ function(vcpkg_configure_cmake)
 
         vcpkg_find_acquire_program(NINJA)
         get_filename_component(NINJA_PATH ${NINJA} DIRECTORY)
-        set(ENV{PATH} "$ENV{PATH}${_PATHSEP}${NINJA_PATH}")
+        vcpkg_add_to_path("${NINJA_PATH}")
 
         #parallelize the configure step
         set(_contents