diff --git a/src/main.cpp b/src/main.cpp
index 23ff7fb34..9b58b77f3 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1684,7 +1684,7 @@ void static InvalidBlockFound(CBlockIndex *pindex, const CValidationState &state
     }
 }
 
-void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, CTxUndo &txundo, int nHeight)
+void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, CTxUndo &txundo, int nHeight)
 {
     // mark inputs spent
     if (!tx.IsCoinBase()) {
@@ -1718,10 +1718,10 @@ void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCach
     inputs.ModifyCoins(tx.GetHash())->FromTx(tx, nHeight);
 }
 
-void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, int nHeight)
+void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight)
 {
     CTxUndo txundo;
-    UpdateCoins(tx, state, inputs, txundo, nHeight);
+    UpdateCoins(tx, inputs, txundo, nHeight);
 }
 
 bool CScriptCheck::operator()() {
@@ -2278,7 +2278,7 @@ bool ConnectBlock(const CBlock& block, CValidationState& state, CBlockIndex* pin
         if (i > 0) {
             blockundo.vtxundo.push_back(CTxUndo());
         }
-        UpdateCoins(tx, state, view, i == 0 ? undoDummy : blockundo.vtxundo.back(), pindex->nHeight);
+        UpdateCoins(tx, view, i == 0 ? undoDummy : blockundo.vtxundo.back(), pindex->nHeight);
 
         BOOST_FOREACH(const JSDescription &joinsplit, tx.vjoinsplit) {
             BOOST_FOREACH(const uint256 &note_commitment, joinsplit.commitments) {
diff --git a/src/main.h b/src/main.h
index ebdb48515..130014bef 100644
--- a/src/main.h
+++ b/src/main.h
@@ -337,7 +337,7 @@ bool ContextualCheckInputs(const CTransaction& tx, CValidationState &state, cons
 bool ContextualCheckTransaction(const CTransaction& tx, CValidationState &state, int nHeight, int dosLevel);
 
 /** Apply the effects of this transaction on the UTXO set represented by view */
-void UpdateCoins(const CTransaction& tx, CValidationState &state, CCoinsViewCache &inputs, int nHeight);
+void UpdateCoins(const CTransaction& tx, CCoinsViewCache& inputs, int nHeight);
 
 /** Context-independent validity checks */
 bool CheckTransaction(const CTransaction& tx, CValidationState& state, libzcash::ProofVerifier& verifier);
diff --git a/src/miner.cpp b/src/miner.cpp
index 6b239c3d1..84a6edf6a 100644
--- a/src/miner.cpp
+++ b/src/miner.cpp
@@ -296,7 +296,7 @@ CBlockTemplate* CreateNewBlock(const CScript& scriptPubKeyIn)
             if (!ContextualCheckInputs(tx, state, view, true, MANDATORY_SCRIPT_VERIFY_FLAGS, true, Params().GetConsensus()))
                 continue;
 
-            UpdateCoins(tx, state, view, nHeight);
+            UpdateCoins(tx, view, nHeight);
 
             // Added
             pblock->vtx.push_back(tx);
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index 2779557ea..383616ae0 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -745,7 +745,7 @@ BOOST_AUTO_TEST_CASE(coins_coinbase_spends)
     BOOST_CHECK(tx.IsCoinBase());
 
     CValidationState state;
-    UpdateCoins(tx, state, cache, 100);
+    UpdateCoins(tx, cache, 100);
 
     // Create coinbase spend
     CMutableTransaction mtx2;
diff --git a/src/txmempool.cpp b/src/txmempool.cpp
index c69e77d05..5492bc4e5 100644
--- a/src/txmempool.cpp
+++ b/src/txmempool.cpp
@@ -384,7 +384,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
         else {
             CValidationState state;
             assert(ContextualCheckInputs(tx, state, mempoolDuplicate, false, 0, false, Params().GetConsensus(), NULL));
-            UpdateCoins(tx, state, mempoolDuplicate, 1000000);
+            UpdateCoins(tx, mempoolDuplicate, 1000000);
         }
     }
     unsigned int stepsSinceLastRemove = 0;
@@ -398,7 +398,7 @@ void CTxMemPool::check(const CCoinsViewCache *pcoins) const
             assert(stepsSinceLastRemove < waitingOnDependants.size());
         } else {
             assert(ContextualCheckInputs(entry->GetTx(), state, mempoolDuplicate, false, 0, false, Params().GetConsensus(), NULL));
-            UpdateCoins(entry->GetTx(), state, mempoolDuplicate, 1000000);
+            UpdateCoins(entry->GetTx(), mempoolDuplicate, 1000000);
             stepsSinceLastRemove = 0;
         }
     }