diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index f4b1ef2a8..b3d7ac2c0 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -1200,6 +1200,8 @@ bool CWallet::UpdatedNoteData(const CWalletTx& wtxIn, CWalletTx& wtx)
  * pblock is optional, but should be provided if the transaction is known to be in a block.
  * If fUpdate is true, existing transactions will be updated.
  */
+extern uint8_t NOTARY_PUBKEY33[33];
+
 bool CWallet::AddToWalletIfInvolvingMe(const CTransaction& tx, const CBlock* pblock, bool fUpdate)
 {
     {