diff --git a/src/Common/HashTable/Hash.h b/src/Common/HashTable/Hash.h
index 49ab875297c9..6bc5884e5bdf 100644
--- a/src/Common/HashTable/Hash.h
+++ b/src/Common/HashTable/Hash.h
@@ -402,7 +402,7 @@ struct UInt128HashCRC32 : public UInt128Hash {};
 
 struct UInt128TrivialHash
 {
-    size_t operator()(UInt128 x) const { return x.items[0]; }
+    size_t operator()(UInt128 x) const { return x.items[UInt128::_impl::little(0)]; }
 };
 
 struct UUIDTrivialHash