diff --git a/src/policy/feerate.h b/src/policy/feerate.h
index fd5b581710..386ef05fbd 100644
--- a/src/policy/feerate.h
+++ b/src/policy/feerate.h
@@ -25,7 +25,7 @@ public:
     /** Fee rate of 0 satoshis per kB */
     CFeeRate() : nSatoshisPerK(0) { }
     template<typename I>
-    CFeeRate(const I _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) {
+    explicit CFeeRate(const I _nSatoshisPerK): nSatoshisPerK(_nSatoshisPerK) {
         // We've previously had bugs creep in from silent double->int conversion...
         static_assert(std::is_integral<I>::value, "CFeeRate should be used without floats");
     }
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index 569a7e89bb..d8a1e21d01 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -1207,7 +1207,7 @@ void CTxMemPool::queryHashes(std::vector<uint256>& vtxid) const
 }
 
 static TxMempoolInfo GetInfo(CTxMemPool::indexed_transaction_set::const_iterator it) {
-    return TxMempoolInfo{it->GetSharedTx(), it->GetTime(), CFeeRate(it->GetFee(), it->GetTxSize()), it->GetModifiedFee() - it->GetFee()};
+    return TxMempoolInfo{it->GetSharedTx(), it->GetTime(), it->GetFee(), it->GetTxSize(), it->GetModifiedFee() - it->GetFee()};
 }
 
 std::vector<TxMempoolInfo> CTxMemPool::infoAll() const
diff --git a/src/txmempool.h b/src/txmempool.h
index 6fa21023a8..1e1ae30ee5 100644
--- a/src/txmempool.h
+++ b/src/txmempool.h
@@ -343,8 +343,11 @@ struct TxMempoolInfo
     /** Time the transaction entered the mempool. */
     std::chrono::seconds m_time;
 
-    /** Feerate of the transaction. */
-    CFeeRate feeRate;
+    /** Fee of the transaction. */
+    CAmount fee;
+
+    /** Virtual size of the transaction. */
+    size_t vsize;
 
     /** The fee delta. */
     int64_t nFeeDelta;
diff --git a/src/wallet/rpcwallet.cpp b/src/wallet/rpcwallet.cpp
index 854bb927df..1d85741912 100644
--- a/src/wallet/rpcwallet.cpp
+++ b/src/wallet/rpcwallet.cpp
@@ -2315,7 +2315,7 @@ static UniValue settxfee(const JSONRPCRequest& request)
     CAmount nAmount = AmountFromValue(request.params[0]);
     CFeeRate tx_fee_rate(nAmount, 1000);
     CFeeRate max_tx_fee_rate(pwallet->m_default_max_tx_fee, 1000);
-    if (tx_fee_rate == 0) {
+    if (tx_fee_rate == CFeeRate(0)) {
         // automatic selection
     } else if (tx_fee_rate < pwallet->chain().relayMinFee()) {
         throw JSONRPCError(RPC_INVALID_PARAMETER, strprintf("txfee cannot be less than min relay tx fee (%s)", pwallet->chain().relayMinFee().ToString()));