diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index f30106269..d02f306b6 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -2501,6 +2501,7 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
                             "     \"changeAddress\"     (string, optional, default pool address) The bitcoin address to receive the change\n"
                             "     \"changePosition\"    (numeric, optional, default random) The index of the change output\n"
                             "     \"includeWatching\"   (boolean, optional, default false) Also select inputs which are watch only\n"
+                            "     \"lockUnspents\"      (boolean, optional, default false) Lock selected unspent outputs\n"
                             "   }\n"
                             "                         for backward compatibility: passing in a true instzead of an object will result in {\"includeWatching\":true}\n"
                             "\nResult:\n"
@@ -2526,6 +2527,7 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
     CTxDestination changeAddress = CNoDestination();
     int changePosition = -1;
     bool includeWatching = false;
+    bool lockUnspents = false;
 
     if (params.size() > 1) {
       if (params[1].type() == UniValue::VBOOL) {
@@ -2537,7 +2539,7 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
 
         UniValue options = params[1];
 
-        RPCTypeCheckObj(options, boost::assign::map_list_of("changeAddress", UniValue::VSTR)("changePosition", UniValue::VNUM)("includeWatching", UniValue::VBOOL), true, true);
+        RPCTypeCheckObj(options, boost::assign::map_list_of("changeAddress", UniValue::VSTR)("changePosition", UniValue::VNUM)("includeWatching", UniValue::VBOOL)("lockUnspents", UniValue::VBOOL), true, true);
 
         if (options.exists("changeAddress")) {
             CBitcoinAddress address(options["changeAddress"].get_str());
@@ -2553,6 +2555,9 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
 
         if (options.exists("includeWatching"))
             includeWatching = options["includeWatching"].get_bool();
+
+        if (options.exists("lockUnspents"))
+            lockUnspents = options["lockUnspents"].get_bool();
       }
     }
 
@@ -2571,7 +2576,7 @@ UniValue fundrawtransaction(const UniValue& params, bool fHelp)
     CAmount nFee;
     string strFailReason;
 
-    if(!pwalletMain->FundTransaction(tx, nFee, changePosition, strFailReason, includeWatching, changeAddress))
+    if(!pwalletMain->FundTransaction(tx, nFee, changePosition, strFailReason, includeWatching, lockUnspents, changeAddress))
         throw JSONRPCError(RPC_INTERNAL_ERROR, strFailReason);
 
     UniValue result(UniValue::VOBJ);
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
index 873fc2cba..4f8ca7487 100644
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2401,7 +2401,7 @@ bool CWallet::SelectCoins(const CAmount& nTargetValue, set<pair<const CWalletTx*
     return res;
 }
 
-bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, const CTxDestination& destChange)
+bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const CTxDestination& destChange)
 {
     vector<CRecipient> vecSend;
 
@@ -2431,7 +2431,15 @@ bool CWallet::FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nC
     BOOST_FOREACH(const CTxIn& txin, wtx.vin)
     {
         if (!coinControl.IsSelected(txin.prevout))
+        {
             tx.vin.push_back(txin);
+
+            if (lockUnspents)
+            {
+              LOCK2(cs_main, cs_wallet);
+              LockCoin(txin.prevout);
+            }
+        }
     }
 
     return true;
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
index 8b28944e3..1479ed9f9 100644
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -611,8 +611,8 @@ public:
     bool IsSpent(const uint256& hash, unsigned int n) const;
 
     bool IsLockedCoin(uint256 hash, unsigned int n) const;
-    void LockCoin(COutPoint& output);
-    void UnlockCoin(COutPoint& output);
+    void LockCoin(const COutPoint& output);
+    void UnlockCoin(const COutPoint& output);
     void UnlockAllCoins();
     void ListLockedCoins(std::vector<COutPoint>& vOutpts);
 
@@ -684,7 +684,7 @@ public:
      * Insert additional inputs into the transaction by
      * calling CreateTransaction();
      */
-    bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, const CTxDestination& destChange = CNoDestination());
+    bool FundTransaction(CMutableTransaction& tx, CAmount& nFeeRet, int& nChangePosInOut, std::string& strFailReason, bool includeWatching, bool lockUnspents, const CTxDestination& destChange = CNoDestination());
 
     /**
      * Create a new transaction paying the recipients with a set of coins