diff --git a/src/common.h b/src/common.h
index 516b099d..fc5fc3db 100644
--- a/src/common.h
+++ b/src/common.h
@@ -13,7 +13,7 @@ using i64 = int64_t;
 using u64 = uint64_t;
 using i128 = __int128;
 using u128 = unsigned __int128;
-using f128 = __float128;
+using f128 = _Float128;
 
 static_assert(sizeof(u8)  == 1, "size u8");
 static_assert(sizeof(u32) == 4, "size u32");