diff --git a/build_files/cmake/platform/platform_win32.cmake b/build_files/cmake/platform/platform_win32.cmake
index 443343a4e18..af00f6670f5 100644
--- a/build_files/cmake/platform/platform_win32.cmake
+++ b/build_files/cmake/platform/platform_win32.cmake
@@ -59,8 +59,10 @@ else()
 endif()
 
 set(WINDOWS_ARM64_MIN_VSCMD_VER 17.12.3)
-if(CMAKE_SYSTEM_PROCESSOR STREQUAL "ARM64" AND $ENV{VSCMD_VER} VERSION_LESS WINDOWS_ARM64_MIN_VSCMD_VER)
-  message(FATAL_ERROR "Windows ARM64 requires VS2022 version ${WINDOWS_ARM64_MIN_VSCMD_VER} or greater - please update your VS2022 install!")
+if(CMAKE_SYSTEM_PROCESSOR STREQUAL "ARM64")
+  if($ENV{VSCMD_VER} VERSION_LESS WINDOWS_ARM64_MIN_VSCMD_VER)
+    message(FATAL_ERROR "Windows ARM64 requires VS2022 version ${WINDOWS_ARM64_MIN_VSCMD_VER} or greater - please update your VS2022 install!")
+  endif()
 endif()
 
 if(WITH_BLENDER AND NOT WITH_PYTHON_MODULE)