diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index c4a0a40536..76e2d37cff 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -3823,3 +3823,12 @@ void CWallet::ComputeBlindingData(const CTxOut& output, CAmount& amount, CPubKey
     pubkey = CPubKey();
     blindingfactor.SetNull();
 }
+
+void CWalletTx::WipeUnknownBlindingData() const
+{
+    for (unsigned int n = 0; n < vout.size(); n++) {
+        if (GetValueOut(n) == -1) {
+            mapValue["blindingdata"][74 * n] = 0;
+        }
+    }
+}
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index 861ded559f..bb779fa457 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -372,6 +372,7 @@ public:
         fImmatureWatchCreditCached = false;
         fDebitCached = false;
         fChangeCached = false;
+        WipeUnknownBlindingData();
     }
 
     void BindWallet(CWallet *pwalletIn)
@@ -417,6 +418,7 @@ public:
 
 private:
     void GetBlindingData(unsigned int nOut, CAmount* pamountOut, CPubKey* ppubkeyOut, uint256* pblindingfactorOut) const;
+    void WipeUnknownBlindingData() const;
 
 public:
     //! Returns either the value out (if it is to us) or 0