diff --git a/src/shared/def.h b/src/shared/def.h
index 62455ab..9d6bd74 100644
--- a/src/shared/def.h
+++ b/src/shared/def.h
@@ -66,6 +66,6 @@ typedef signed long long i64;
 #define U64_C(x) x##ULL
 
 #define KiB(count) (U64_C(count) * U64_C(1024))
-#define MiB(count) (U64_C(count) * U64_C(1024) * U64_C(1024))
-#define GiB(count) (U64_C(count) * U64_C(1024) * U64_C(1024) * U64_C(1024))
-#define TiB(count) (U64_C(count) * U64_C(1024) * U64_C(1024) * U64_C(1024) * U64_C(1024))
\ No newline at end of file
+#define MiB(count) (U64_C(count) * KiB(1024))
+#define GiB(count) (U64_C(count) * MiB(1024))
+#define TiB(count) (U64_C(count) * GiB(1024))
\ No newline at end of file