diff --git a/src/node/miner.cpp b/src/node/miner.cpp
index a337771f53e..c7bc9a9a3d1 100644
--- a/src/node/miner.cpp
+++ b/src/node/miner.cpp
@@ -74,13 +74,9 @@ BlockAssembler::BlockAssembler(Chainstate& chainstate, const CTxMemPool* mempool
 void ApplyArgsManOptions(const ArgsManager& args, BlockAssembler::Options& options)
 {
     // Block resource limits
-    // If -blockmaxweight is not given, limit to DEFAULT_BLOCK_MAX_WEIGHT
-    options.nBlockMaxWeight = args.GetIntArg("-blockmaxweight", DEFAULT_BLOCK_MAX_WEIGHT);
-    if (args.IsArgSet("-blockmintxfee")) {
-        std::optional<CAmount> parsed = ParseMoney(args.GetArg("-blockmintxfee", ""));
-        options.blockMinFeeRate = CFeeRate{parsed.value_or(DEFAULT_BLOCK_MIN_TX_FEE)};
-    } else {
-        options.blockMinFeeRate = CFeeRate{DEFAULT_BLOCK_MIN_TX_FEE};
+    options.nBlockMaxWeight = args.GetIntArg("-blockmaxweight", options.nBlockMaxWeight);
+    if (const auto blockmintxfee{args.GetArg("-blockmintxfee")}) {
+        if (const auto parsed{ParseMoney(*blockmintxfee)}) options.blockMinFeeRate = CFeeRate{*parsed};
     }
 }
 static BlockAssembler::Options ConfiguredOptions()