diff --git a/src/miner.cpp b/src/miner.cpp
index a27210b69..ae61d32f8 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -100,7 +100,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
 {
     const CChainParams& chainparams = Params();
     // Create new block
-    auto_ptr<CBlockTemplate> pblocktemplate(new CBlockTemplate());
+    unique_ptr<CBlockTemplate> pblocktemplate(new CBlockTemplate());
     if(!pblocktemplate.get())
         return NULL;
     CBlock *pblock = &pblocktemplate->block; // pointer for convenience
@@ -488,7 +488,7 @@ void static BitcoinMiner(CWallet *pwallet)
             unsigned int nTransactionsUpdatedLast = mempool.GetTransactionsUpdated();
             CBlockIndex* pindexPrev = chainActive.Tip();
 
-            auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey));
+            unique_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey));
             if (!pblocktemplate.get())
             {
                 LogPrintf("Error in ZcashMiner: Keypool ran out, please call keypoolrefill before restarting the mining thread\n");
diff --git a/src/rpcmining.cpp b/src/rpcmining.cpp
index fb6b0a565..d8f2a9b26 100644
--- a/src/rpcmining.cpp
+++ b/src/rpcmining.cpp
@@ -154,7 +154,7 @@ Value generate(const Array& params, bool fHelp)
     unsigned int k = Params().EquihashK();
     while (nHeight < nHeightEnd)
     {
-        auto_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey));
+        unique_ptr<CBlockTemplate> pblocktemplate(CreateNewBlockWithKey(reservekey));
         if (!pblocktemplate.get())
             throw JSONRPCError(RPC_INTERNAL_ERROR, "Wallet keypool empty");
         CBlock *pblock = &pblocktemplate->block;