diff --git a/src/validationinterface.h b/src/validationinterface.h
index 568da66df2..d6da2bc1fd 100644
--- a/src/validationinterface.h
+++ b/src/validationinterface.h
@@ -86,7 +86,6 @@ public:
     void TransactionAddedToMempool(const CTransactionRef &);
     void BlockConnected(const std::shared_ptr<const CBlock> &, const CBlockIndex *pindex, const std::vector<CTransactionRef> &);
     void BlockDisconnected(const std::shared_ptr<const CBlock> &);
-    void UpdatedTransaction(const uint256 &);
     void SetBestChain(const CBlockLocator &);
     void Inventory(const uint256 &);
     void Broadcast(int64_t nBestBlockTime, CConnman* connman);