diff --git a/src/lv_misc/lv_types.h b/src/lv_misc/lv_types.h
index c588e2451..2c28bca1e 100644
--- a/src/lv_misc/lv_types.h
+++ b/src/lv_misc/lv_types.h
@@ -18,7 +18,7 @@ extern "C" {
  *      DEFINES
  *********************/
 // Check windows
-#ifdef __WIN64
+#ifdef _WIN64
 #define LV_ARCH_64
 #endif