diff --git a/CHANGELOG.md b/CHANGELOG.md
index b9b0b1f2e65..4ac21768f6e 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -42,6 +42,7 @@ Support for `nodes-whitelist` and `accounts-whitelist` will be removed in a futu
   - Add `perm_getAccountsAllowlist` as an alternative equivalent to `perm_getAccountsWhitelist`
   - Add `perm_addAccountsToAllowlist` as an alternative equivalent to `perm_addAccountsToWhitelist`
   - Add `perm_removeAccountsFromAllowlist` as an alternative equivalent to `perm_removeAccountsFromWhitelist`
+- Add missing `mixHash` field for `eth_getBlockBy*` JSON RPC endpoints
 
 ## 1.4.6
 
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/results/BlockResult.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/results/BlockResult.java
index 6306b81cf33..5bf2705069b 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/results/BlockResult.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/internal/results/BlockResult.java
@@ -28,6 +28,7 @@
 @JsonPropertyOrder({
   "number",
   "hash",
+  "mixHash",
   "parentHash",
   "nonce",
   "sha3Uncles",
@@ -51,6 +52,7 @@ public class BlockResult implements JsonRpcResult {
 
   private final String number;
   private final String hash;
+  private final String mixHash;
   private final String parentHash;
   private final String nonce;
   private final String sha3Uncles;
@@ -89,6 +91,7 @@ public <T extends TransactionResult> BlockResult(
       final boolean includeCoinbase) {
     this.number = Quantity.create(header.getNumber());
     this.hash = header.getHash().toString();
+    this.mixHash = header.getMixHash().toString();
     this.parentHash = header.getParentHash().toString();
     this.nonce = Quantity.longToPaddedHex(header.getNonce(), 8);
     this.sha3Uncles = header.getOmmersHash().toString();
@@ -120,6 +123,11 @@ public String getHash() {
     return hash;
   }
 
+  @JsonGetter(value = "mixHash")
+  public String getMixHash() {
+    return mixHash;
+  }
+
   @JsonGetter(value = "parentHash")
   public String getParentHash() {
     return parentHash;
diff --git a/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_complete.json b/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_complete.json
index 081d750ac51..8f8da4ace03 100644
--- a/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_complete.json
+++ b/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_complete.json
@@ -14,6 +14,7 @@
     "result": {
       "number": "0x10",
       "hash": "0x1878c6f27178250f3d55186a2887b076936599f307d96dabcf331b2ff0a38f0c",
+      "mixHash": "0xa358a5b5e5faed469d9603e454ace5764cc6da652f22eed5318b40982973d822",
       "parentHash": "0x9dcd5e20cc30e48e3635ac3a1c398c2f45ee818fcbc232110878ddf0e936e7ea",
       "nonce": "0xdfc50ac1134d764f",
       "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",
diff --git a/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_hashes.json b/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_hashes.json
index 63ad083507a..204e0ecbc72 100644
--- a/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_hashes.json
+++ b/ethereum/api/src/test/resources/org/hyperledger/besu/ethereum/api/jsonrpc/eth/eth_getBlockByNumber_hashes.json
@@ -14,6 +14,7 @@
     "result": {
       "number": "0x10",
       "hash": "0x1878c6f27178250f3d55186a2887b076936599f307d96dabcf331b2ff0a38f0c",
+      "mixHash": "0xa358a5b5e5faed469d9603e454ace5764cc6da652f22eed5318b40982973d822",
       "parentHash": "0x9dcd5e20cc30e48e3635ac3a1c398c2f45ee818fcbc232110878ddf0e936e7ea",
       "nonce": "0xdfc50ac1134d764f",
       "sha3Uncles": "0x1dcc4de8dec75d7aab85b567b6ccd41ad312451b948a7413f0a142fd40d49347",