diff --git a/src/rest.cpp b/src/rest.cpp
--- a/src/rest.cpp
+++ b/src/rest.cpp
@@ -271,8 +271,7 @@
             UniValue objBlock;
             {
                 LOCK(cs_main);
-                objBlock =
-                    blockToJSON(config, block, pblockindex, showTxDetails);
+                objBlock = blockToJSON(block, pblockindex, showTxDetails);
             }
             std::string strJSON = objBlock.write() + "\n";
             req->WriteHeader("Content-Type", "application/json");
diff --git a/src/rpc/blockchain.h b/src/rpc/blockchain.h
--- a/src/rpc/blockchain.h
+++ b/src/rpc/blockchain.h
@@ -27,8 +27,8 @@
 void RPCNotifyBlockChange(bool ibd, const CBlockIndex *pindex);
 
 /** Block description to JSON */
-UniValue blockToJSON(const Config &config, const CBlock &block,
-                     const CBlockIndex *blockindex, bool txDetails = false);
+UniValue blockToJSON(const CBlock &block, const CBlockIndex *blockindex,
+                     bool txDetails = false);
 
 /** Mempool information to JSON */
 UniValue mempoolInfoToJSON();
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -101,8 +101,8 @@
     return result;
 }
 
-UniValue blockToJSON(const Config &config, const CBlock &block,
-                     const CBlockIndex *blockindex, bool txDetails) {
+UniValue blockToJSON(const CBlock &block, const CBlockIndex *blockindex,
+                     bool txDetails) {
     AssertLockHeld(cs_main);
     UniValue result(UniValue::VOBJ);
     result.pushKV("hash", blockindex->GetBlockHash().GetHex());
@@ -911,7 +911,7 @@
         return strHex;
     }
 
-    return blockToJSON(config, block, pblockindex, verbosity >= 2);
+    return blockToJSON(block, pblockindex, verbosity >= 2);
 }
 
 struct CCoinsStats {