diff --git a/src/coins.h b/src/coins.h
index 4b39c0bacd2..e58586dd6cd 100644
--- a/src/coins.h
+++ b/src/coins.h
@@ -37,7 +37,7 @@ public:
     CTxOut out;
 
     //! whether containing transaction was a coinbase
-    unsigned int fCoinBase : 1;
+    bool fCoinBase : 1;
 
     //! at which height this containing transaction was included in the active block chain
     uint32_t nHeight : 31;
diff --git a/src/core_io.cpp b/src/core_io.cpp
index 7492e9ca50f..eeda115699f 100644
--- a/src/core_io.cpp
+++ b/src/core_io.cpp
@@ -480,7 +480,7 @@ void TxToUniv(const CTransaction& tx, const uint256& block_hash, UniValue& entry
                 ScriptToUniv(prev_txout.scriptPubKey, /*out=*/o_script_pub_key, /*include_hex=*/true, /*include_address=*/true);
 
                 UniValue p(UniValue::VOBJ);
-                p.pushKV("generated", static_cast<bool>(prev_coin.fCoinBase));
+                p.pushKV("generated", prev_coin.IsCoinBase());
                 p.pushKV("height", prev_coin.nHeight);
                 p.pushKV("value", ValueFromAmount(prev_txout.nValue));
                 p.pushKV("scriptPubKey", std::move(o_script_pub_key));
diff --git a/src/rpc/blockchain.cpp b/src/rpc/blockchain.cpp
index 262b6bab0e3..9838bda6722 100644
--- a/src/rpc/blockchain.cpp
+++ b/src/rpc/blockchain.cpp
@@ -1222,7 +1222,7 @@ static RPCHelpMan gettxout()
     UniValue o(UniValue::VOBJ);
     ScriptToUniv(coin->out.scriptPubKey, /*out=*/o, /*include_hex=*/true, /*include_address=*/true);
     ret.pushKV("scriptPubKey", std::move(o));
-    ret.pushKV("coinbase", static_cast<bool>(coin->fCoinBase));
+    ret.pushKV("coinbase", coin->IsCoinBase());
 
     return ret;
 },
diff --git a/src/test/coins_tests.cpp b/src/test/coins_tests.cpp
index 8c0756d8528..f56e369cc5e 100644
--- a/src/test/coins_tests.cpp
+++ b/src/test/coins_tests.cpp
@@ -519,7 +519,7 @@ BOOST_AUTO_TEST_CASE(ccoins_serialization)
     // Good example
     Coin cc1;
     SpanReader{"97f23c835800816115944e077fe7c803cfa57f29b36bf87c1d35"_hex} >> cc1;
-    BOOST_CHECK_EQUAL(cc1.fCoinBase, false);
+    BOOST_CHECK_EQUAL(cc1.IsCoinBase(), false);
     BOOST_CHECK_EQUAL(cc1.nHeight, 203998U);
     BOOST_CHECK_EQUAL(cc1.out.nValue, CAmount{60000000000});
     BOOST_CHECK_EQUAL(HexStr(cc1.out.scriptPubKey), HexStr(GetScriptForDestination(PKHash(uint160("816115944e077fe7c803cfa57f29b36bf87c1d35"_hex_u8)))));
@@ -527,7 +527,7 @@ BOOST_AUTO_TEST_CASE(ccoins_serialization)
     // Good example
     Coin cc2;
     SpanReader{"8ddf77bbd123008c988f1a4a4de2161e0f50aac7f17e7f9555caa4"_hex} >> cc2;
-    BOOST_CHECK_EQUAL(cc2.fCoinBase, true);
+    BOOST_CHECK_EQUAL(cc2.IsCoinBase(), true);
     BOOST_CHECK_EQUAL(cc2.nHeight, 120891U);
     BOOST_CHECK_EQUAL(cc2.out.nValue, 110397);
     BOOST_CHECK_EQUAL(HexStr(cc2.out.scriptPubKey), HexStr(GetScriptForDestination(PKHash(uint160("8c988f1a4a4de2161e0f50aac7f17e7f9555caa4"_hex_u8)))));
@@ -535,7 +535,7 @@ BOOST_AUTO_TEST_CASE(ccoins_serialization)
     // Smallest possible example
     Coin cc3;
     SpanReader{"000006"_hex} >> cc3;
-    BOOST_CHECK_EQUAL(cc3.fCoinBase, false);
+    BOOST_CHECK_EQUAL(cc3.IsCoinBase(), false);
     BOOST_CHECK_EQUAL(cc3.nHeight, 0U);
     BOOST_CHECK_EQUAL(cc3.out.nValue, 0);
     BOOST_CHECK_EQUAL(cc3.out.scriptPubKey.size(), 0U);
@@ -871,7 +871,7 @@ Coin MakeCoin()
     Coin coin;
     coin.out.nValue = m_rng.rand32();
     coin.nHeight = m_rng.randrange(4096);
-    coin.fCoinBase = 0;
+    coin.fCoinBase = false;
     return coin;
 }
 
diff --git a/src/test/fuzz/utxo_snapshot.cpp b/src/test/fuzz/utxo_snapshot.cpp
index 67290f7d306..29089743a09 100644
--- a/src/test/fuzz/utxo_snapshot.cpp
+++ b/src/test/fuzz/utxo_snapshot.cpp
@@ -137,7 +137,7 @@ void utxo_snapshot_fuzz(FuzzBufferType buffer)
                 outfile << coinbase->GetHash();
                 WriteCompactSize(outfile, 1); // number of coins for the hash
                 WriteCompactSize(outfile, 0); // index of coin
-                outfile << Coin(coinbase->vout[0], height, /*fCoinBaseIn=*/1);
+                outfile << Coin(coinbase->vout[0], height, /*fCoinBaseIn=*/true);
                 height++;
             }
         }
@@ -149,7 +149,7 @@ void utxo_snapshot_fuzz(FuzzBufferType buffer)
             outfile << coinbase->GetHash();
             WriteCompactSize(outfile, 1);   // number of coins for the hash
             WriteCompactSize(outfile, 999); // index of coin
-            outfile << Coin{coinbase->vout[0], /*nHeightIn=*/999, /*fCoinBaseIn=*/0};
+            outfile << Coin{coinbase->vout[0], /*nHeightIn=*/999, /*fCoinBaseIn=*/false};
         }
         assert(outfile.fclose() == 0);
     }
diff --git a/src/validation.cpp b/src/validation.cpp
index c200c3d6cd8..01475736491 100644
--- a/src/validation.cpp
+++ b/src/validation.cpp
@@ -2214,7 +2214,7 @@ DisconnectResult Chainstate::DisconnectBlock(const CBlock& block, const CBlockIn
                 COutPoint out(hash, o);
                 Coin coin;
                 bool is_spent = view.SpendCoin(out, &coin);
-                if (!is_spent || tx.vout[o] != coin.out || pindex->nHeight != coin.nHeight || is_coinbase != coin.fCoinBase) {
+                if (!is_spent || tx.vout[o] != coin.out || pindex->nHeight != coin.nHeight || is_coinbase != coin.IsCoinBase()) {
                     if (!is_bip30_exception) {
                         fClean = false; // transaction output mismatch
                     }