diff --git a/config/MSystem.cmake b/config/MSystem.cmake
index 6c719c1..72379e8 100644
--- a/config/MSystem.cmake
+++ b/config/MSystem.cmake
@@ -25,7 +25,8 @@ elseif (WIN32)
     execute_process(COMMAND ver
                     OUTPUT_VARIABLE VER_OUTPUT
                     OUTPUT_STRIP_TRAILING_WHITESPACE)
-    if(VER_OUTPUT MATCHES "XP")
+    if(VER_OUTPUT MATCHES "XP" OR VER_OUTPUT STREQUAL "")
+        message(STATUS "maybe Windows XP platform.")
         set(SYSTEM_ARCH "x86")
     else()
         execute_process(COMMAND wmic os get osarchitecture