diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index c8aac9181..b1655eebd 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -1053,7 +1053,7 @@ public:
     void MarkDirty();
     bool UpdateNullifierNoteMap();
     void UpdateNullifierNoteMapWithTx(const CWalletTx& wtx);
-    void UpdateSaplingNullifierNoteMapWithTx(CWalletTx& tx);
+    void UpdateSaplingNullifierNoteMapWithTx(CWalletTx& wtx);
     void UpdateSaplingNullifierNoteMapForBlock(const CBlock* pblock);
     bool AddToWallet(const CWalletTx& wtxIn, bool fFromLoadWallet, CWalletDB* pwalletdb);
     void SyncTransaction(const CTransaction& tx, const CBlock* pblock);