diff --git a/CHANGELOG.md b/CHANGELOG.md
index 5be4d9d89fb..c6340a1b045 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -9,6 +9,7 @@
 
 ### Bug Fixes
 - Make smart contract permissioning features work with london fork [#5727](https://github.com/hyperledger/besu/pull/5727)
+- Add type to PendingTransactionDetail, fix eth_subscribe [#5729](https://github.com/hyperledger/besu/pull/5729)
 
 ### Download Links
 
diff --git a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/websocket/subscription/pending/PendingTransactionDetailResult.java b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/websocket/subscription/pending/PendingTransactionDetailResult.java
index bcd87a849e8..af503dba85e 100644
--- a/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/websocket/subscription/pending/PendingTransactionDetailResult.java
+++ b/ethereum/api/src/main/java/org/hyperledger/besu/ethereum/api/jsonrpc/websocket/subscription/pending/PendingTransactionDetailResult.java
@@ -14,6 +14,7 @@
  */
 package org.hyperledger.besu.ethereum.api.jsonrpc.websocket.subscription.pending;
 
+import org.hyperledger.besu.datatypes.TransactionType;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.results.JsonRpcResult;
 import org.hyperledger.besu.ethereum.api.jsonrpc.internal.results.Quantity;
 import org.hyperledger.besu.ethereum.core.Transaction;
@@ -30,6 +31,7 @@
   "input",
   "nonce",
   "to",
+  "type",
   "value",
   "v",
   "r",
@@ -43,6 +45,7 @@ public class PendingTransactionDetailResult implements JsonRpcResult {
   private final String input;
   private final String nonce;
   private final String to;
+  private final String type;
   private final String value;
   private final String v;
   private final String r;
@@ -56,6 +59,10 @@ public PendingTransactionDetailResult(final Transaction tx) {
     this.input = tx.getPayload().toString();
     this.nonce = Quantity.create(tx.getNonce());
     this.to = tx.getTo().map(Bytes::toHexString).orElse(null);
+    this.type =
+        tx.getType().equals(TransactionType.FRONTIER)
+            ? Quantity.create(0)
+            : Quantity.create(tx.getType().getSerializedType());
     this.value = Quantity.create(tx.getValue());
     this.v = Quantity.create(tx.getV());
     this.r = Quantity.create(tx.getR());
@@ -97,6 +104,11 @@ public String getTo() {
     return to;
   }
 
+  @JsonGetter(value = "type")
+  public String getType() {
+    return type;
+  }
+
   @JsonGetter(value = "value")
   public String getValue() {
     return value;
diff --git a/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/SimpleTestTransactionBuilder.java b/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/SimpleTestTransactionBuilder.java
index 434f97986a3..7d5e7f772e3 100644
--- a/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/SimpleTestTransactionBuilder.java
+++ b/ethereum/api/src/test/java/org/hyperledger/besu/ethereum/api/jsonrpc/SimpleTestTransactionBuilder.java
@@ -19,6 +19,7 @@
 
 import org.hyperledger.besu.datatypes.Address;
 import org.hyperledger.besu.datatypes.Hash;
+import org.hyperledger.besu.datatypes.TransactionType;
 import org.hyperledger.besu.datatypes.Wei;
 import org.hyperledger.besu.ethereum.core.Transaction;
 
@@ -40,6 +41,7 @@ public static Transaction transaction(final Hash hash) {
         "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",
         "0x0",
         null,
+        "0xf8",
         "0xa",
         "0x1c",
         "0xe439aa8812c1c0a751b0931ea20c5a30cd54fe15cae883c59fd8107e04557679",
@@ -54,6 +56,7 @@ public static Transaction transaction(
       final String input,
       final String nonce,
       final String toAddress,
+      final String type,
       final String value,
       final String v,
       final String r,
@@ -67,6 +70,7 @@ public static Transaction transaction(
     when(transaction.getR()).thenReturn(bigInteger(r));
     when(transaction.getS()).thenReturn(bigInteger(s));
     when(transaction.getTo()).thenReturn(Optional.ofNullable(address(toAddress)));
+    when(transaction.getType()).thenReturn(TransactionType.of(Integer.decode(type)));
     when(transaction.getSender()).thenReturn(address(fromAddress));
     when(transaction.getPayload()).thenReturn(Bytes.fromHexString(input));
     when(transaction.getValue()).thenReturn(wei(value));