diff --git a/vtoycli/vtoycli.h b/vtoycli/vtoycli.h
index 1a6667ff..74f28b16 100644
--- a/vtoycli/vtoycli.h
+++ b/vtoycli/vtoycli.h
@@ -21,7 +21,7 @@
 #ifndef __VTOYCLI_H__
 #define __VTOYCLI_H__
 
-#define VENTOY_EFI_PART_ATTR   0xC000000000000001ULL
+#define VENTOY_EFI_PART_ATTR   0x9000000000000000ULL
 
 #define SIZE_1MB   (1024 * 1024)
 #define VENTOY_EFI_PART_SIZE   (32 * SIZE_1MB)