diff --git a/src/sysinfo.cc b/src/sysinfo.cc
index 71485982..49bff75e 100644
--- a/src/sysinfo.cc
+++ b/src/sysinfo.cc
@@ -354,8 +354,7 @@ std::vector<CPUInfo::CacheInfo> GetCacheSizesWindows() {
     C.type = "Unknown";
     switch (cache.Type) {
 // Windows SDK version >= 10.0.26100.0
-// 0x0A000010 is the value of NTDDI_WIN11_GE
-#if NTDDI_VERSION >= 0x0A000010
+#ifdef NTDDI_WIN11_GE
       case CacheUnknown:
         break;
 #endif