diff --git a/dbms/src/Common/HashTable/Hash.h b/dbms/src/Common/HashTable/Hash.h
index 19c8c66cf0c..2437f6b86cc 100644
--- a/dbms/src/Common/HashTable/Hash.h
+++ b/dbms/src/Common/HashTable/Hash.h
@@ -130,7 +130,7 @@ inline UInt32 updateWeakHash32(const DB::UInt8 * pos, size_t size, DB::UInt32 up
                 __builtin_unreachable();
         }
 
-        value |= size;
+        value_ptr[7] = size;
         return intHashCRC32(value, updated_value);
     }