diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -3465,8 +3465,6 @@
             "false) Also select inputs which are watch only\n"
             "     \"lockUnspents\"           (boolean, optional, default "
             "false) Lock selected unspent outputs\n"
-            "     \"reserveChangeKey\"       (boolean, optional, default true) "
-            "Reserves the change output key from the keypool\n"
             "     \"feeRate\"                (numeric, optional, default not "
             "set: makes wallet determine the fee) Set a specific feerate (" +
             CURRENCY_UNIT +
@@ -3517,7 +3515,6 @@
     CCoinControl coinControl;
     int changePosition = -1;
     bool lockUnspents = false;
-    bool reserveChangeKey = true;
     UniValue subtractFeeFromOutputs;
     std::set<int> setSubtractFeeFromOutputs;
 
@@ -3537,6 +3534,8 @@
                     {"changePosition", UniValueType(UniValue::VNUM)},
                     {"includeWatching", UniValueType(UniValue::VBOOL)},
                     {"lockUnspents", UniValueType(UniValue::VBOOL)},
+                    // DEPRECATED (and ignored), should be removed in 0.16 or
+                    // so.
                     {"reserveChangeKey", UniValueType(UniValue::VBOOL)},
                     // will be checked below
                     {"feeRate", UniValueType()},
@@ -3571,10 +3570,6 @@
                 lockUnspents = options["lockUnspents"].get_bool();
             }
 
-            if (options.exists("reserveChangeKey")) {
-                reserveChangeKey = options["reserveChangeKey"].get_bool();
-            }
-
             if (options.exists("feeRate")) {
                 coinControl.m_feerate =
                     CFeeRate(AmountFromValue(options["feeRate"]));
@@ -3630,7 +3625,7 @@
 
     if (!pwallet->FundTransaction(tx, nFeeOut, changePosition, strFailReason,
                                   lockUnspents, setSubtractFeeFromOutputs,
-                                  coinControl, reserveChangeKey)) {
+                                  coinControl)) {
         throw JSONRPCError(RPC_WALLET_ERROR, strFailReason);
     }
 
diff --git a/src/wallet/wallet.h b/src/wallet/wallet.h
--- a/src/wallet/wallet.h
+++ b/src/wallet/wallet.h
@@ -988,7 +988,7 @@
                          int &nChangePosInOut, std::string &strFailReason,
                          bool lockUnspents,
                          const std::set<int> &setSubtractFeeFromOutputs,
-                         CCoinControl coinControl, bool keepReserveKey = true);
+                         CCoinControl coinControl);
     bool SignTransaction(CMutableTransaction &tx);
 
     /**
diff --git a/src/wallet/wallet.cpp b/src/wallet/wallet.cpp
--- a/src/wallet/wallet.cpp
+++ b/src/wallet/wallet.cpp
@@ -2760,7 +2760,7 @@
                               int &nChangePosInOut, std::string &strFailReason,
                               bool lockUnspents,
                               const std::set<int> &setSubtractFeeFromOutputs,
-                              CCoinControl coinControl, bool keepReserveKey) {
+                              CCoinControl coinControl) {
     std::vector<CRecipient> vecSend;
 
     // Turn the txout set into a CRecipient vector.
@@ -2788,6 +2788,9 @@
     if (nChangePosInOut != -1) {
         tx.vout.insert(tx.vout.begin() + nChangePosInOut,
                        tx_new->vout[nChangePosInOut]);
+        // we dont have the normal Create/Commit cycle, and dont want to risk
+        // reusing change, so just remove the key from the keypool here.
+        reservekey.KeepKey();
     }
 
     // Copy output sizes from new transaction; they may have had the fee
@@ -2808,11 +2811,6 @@
         }
     }
 
-    // Optionally keep the change output key.
-    if (keepReserveKey) {
-        reservekey.KeepKey();
-    }
-
     return true;
 }
 
diff --git a/test/functional/rpc_fundrawtransaction.py b/test/functional/rpc_fundrawtransaction.py
--- a/test/functional/rpc_fundrawtransaction.py
+++ b/test/functional/rpc_fundrawtransaction.py
@@ -681,21 +681,9 @@
             result3['fee'], FromHex(CTransaction(), result3['hex']).billable_size(), 10 * result_fee_rate, 10)
 
         #
-        # Test address reuse option #
+        # Test no address reuse occurs #
         #
 
-        result3 = self.nodes[3].fundrawtransaction(
-            rawTx, {"reserveChangeKey": False})
-        res_dec = self.nodes[0].decoderawtransaction(result3["hex"])
-        changeaddress = ""
-        for out in res_dec['vout']:
-            if out['value'] > 1.0:
-                changeaddress += out['scriptPubKey']['addresses'][0]
-        assert(changeaddress != "")
-        nextaddr = self.nodes[3].getrawchangeaddress()
-        # frt should not have removed the key from the keypool
-        assert(changeaddress == nextaddr)
-
         result3 = self.nodes[3].fundrawtransaction(rawTx)
         res_dec = self.nodes[0].decoderawtransaction(result3["hex"])
         changeaddress = ""