diff --git a/src/wallet/fees.cpp b/src/wallet/fees.cpp
index af4eea6e7..f96030925 100644
--- a/src/wallet/fees.cpp
+++ b/src/wallet/fees.cpp
@@ -1,53 +1,53 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2017 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <wallet/fees.h>
 
 #include <config.h>
 #include <policy/policy.h>
 #include <txmempool.h>
 #include <util.h>
 #include <validation.h>
 #include <wallet/coincontrol.h>
 #include <wallet/wallet.h>
 
-Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool,
-                     Amount targetFee) {
+static Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool,
+                            Amount targetFee) {
     Amount nFeeNeeded = targetFee;
     if (nFeeNeeded == Amount::zero()) {
         nFeeNeeded = pool.estimateFee().GetFeeCeiling(nTxBytes);
         // ... unless we don't have enough mempool data for estimatefee, then
         // use fallbackFee.
         if (nFeeNeeded == Amount::zero()) {
             nFeeNeeded = CWallet::fallbackFee.GetFeeCeiling(nTxBytes);
         }
     }
 
     // Prevent user from paying a fee below minRelayTxFee or minTxFee.
     nFeeNeeded =
         std::max(nFeeNeeded, GetConfig().GetMinFeePerKB().GetFee(nTxBytes));
 
     // But always obey the maximum.
     if (nFeeNeeded > maxTxFee) {
         nFeeNeeded = maxTxFee;
     }
 
     return nFeeNeeded;
 }
 
 Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool) {
     // payTxFee is the user-set global for desired feerate.
     return GetMinimumFee(nTxBytes, pool, payTxFee.GetFeeCeiling(nTxBytes));
 }
 
 Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool,
                      const CCoinControl &coinControl) {
     if (coinControl.fOverrideFeeRate && coinControl.m_feerate) {
         return GetMinimumFee(nTxBytes, pool,
                              coinControl.m_feerate->GetFee(nTxBytes));
     } else {
         return GetMinimumFee(nTxBytes, pool);
     }
 }
diff --git a/src/wallet/fees.h b/src/wallet/fees.h
index 64f857539..90c28d3f7 100644
--- a/src/wallet/fees.h
+++ b/src/wallet/fees.h
@@ -1,33 +1,27 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2017 The Bitcoin Core developers
 // Copyright (c) 2018 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_WALLET_FEES_H
 #define BITCOIN_WALLET_FEES_H
 
 #include <amount.h>
 
 class CCoinControl;
 class CTxMemPool;
 
 /**
  * Estimate the minimum fee considering user set parameters
  * and the required fee
  */
 Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool);
 
-/**
- * Estimate the minimum fee considering required fee and targetFee
- */
-Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool,
-                     Amount targetFee);
-
 /**
  * Estimate the minimum fee considering overriden fee rate from coin control
  */
 Amount GetMinimumFee(unsigned int nTxBytes, const CTxMemPool &pool,
                      const CCoinControl &coinControl);
 
 #endif // BITCOIN_WALLET_FEES_H