diff --git a/src/primitives/transaction.h b/src/primitives/transaction.h
index 1b5a47e0da..0ba9affeda 100644
--- a/src/primitives/transaction.h
+++ b/src/primitives/transaction.h
@@ -25,7 +25,8 @@ public:
 
     template <typename Stream, typename Operation>
     inline void SerializationOp(Stream& s, Operation ser_action, int nType, int nVersion) {
-        READWRITE(FLATDATA(*this));
+        READWRITE(hash);
+        READWRITE(n);
     }
 
     void SetNull() { hash.SetNull(); n = (uint32_t) -1; }