diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -580,11 +580,10 @@
     int nMinOrderPos = std::numeric_limits<int>::max();
     const CWalletTx *copyFrom = nullptr;
     for (TxSpends::iterator it = range.first; it != range.second; ++it) {
-        const TxId &txid = it->second;
-        int n = mapWallet[txid].nOrderPos;
-        if (n < nMinOrderPos) {
-            nMinOrderPos = n;
-            copyFrom = &mapWallet[txid];
+        const CWalletTx *wtx = &mapWallet[it->second];
+        if (wtx->nOrderPos < nMinOrderPos) {
+            nMinOrderPos = wtx->nOrderPos;
+            copyFrom = wtx;
         }
     }
 
@@ -1011,9 +1010,7 @@
 
 bool CWallet::LoadToWallet(const CWalletTx &wtxIn) {
     const TxId &txid = wtxIn.GetId();
-
-    mapWallet[txid] = wtxIn;
-    CWalletTx &wtx = mapWallet[txid];
+    CWalletTx &wtx = mapWallet.emplace(txid, wtxIn).first->second;
     wtx.BindWallet(this);
     wtxOrdered.insert(std::make_pair(wtx.nOrderPos, TxPair(&wtx, nullptr)));
     AddToSpends(txid);