diff --git a/beacon_node/http_api/src/beacon/pool.rs b/beacon_node/http_api/src/beacon/pool.rs
index c6b8a69643..3525567eb4 100644
--- a/beacon_node/http_api/src/beacon/pool.rs
+++ b/beacon_node/http_api/src/beacon/pool.rs
@@ -629,6 +629,13 @@ fn publish_payload_attestation_messages<T: BeaconChainTypes>(
                         "Payload attestation invalid for fork choice"
                     );
                 }
+
+                if let Err(e) = chain.add_payload_attestation_to_pool(&verified) {
+                    warn!(
+                        reason = ?e,
+                        "Failed to add payload attestation to pool"
+                    );
+                }
             }
             Err(PayloadAttestationError::PriorPayloadAttestationMessageKnown { .. }) => {
                 num_already_known += 1;
diff --git a/beacon_node/http_api/tests/tests.rs b/beacon_node/http_api/tests/tests.rs
index 01a77ad4d7..6f8f9c10a5 100644
--- a/beacon_node/http_api/tests/tests.rs
+++ b/beacon_node/http_api/tests/tests.rs
@@ -2846,6 +2846,8 @@ impl ApiTester {
         let message = self.make_valid_payload_attestation_message(0);
         let fork_name = self.chain.spec.fork_name_at_slot::<E>(message.data.slot);
 
+        let pool_count_before = self.chain.op_pool.num_payload_attestation_messages();
+
         self.client
             .post_beacon_pool_payload_attestations(&[message], fork_name)
             .await
@@ -2856,6 +2858,12 @@ impl ApiTester {
             "valid payload attestation should be sent to network"
         );
 
+        assert_eq!(
+            self.chain.op_pool.num_payload_attestation_messages(),
+            pool_count_before + 1,
+            "payload attestation should be added to op pool"
+        );
+
         self
     }
 
@@ -2863,6 +2871,8 @@ impl ApiTester {
         let message = self.make_valid_payload_attestation_message(1);
         let fork_name = self.chain.spec.fork_name_at_slot::<E>(message.data.slot);
 
+        let pool_count_before = self.chain.op_pool.num_payload_attestation_messages();
+
         self.client
             .post_beacon_pool_payload_attestations_ssz(&[message], fork_name)
             .await
@@ -2873,6 +2883,12 @@ impl ApiTester {
             "valid payload attestation (SSZ) should be sent to network"
         );
 
+        assert_eq!(
+            self.chain.op_pool.num_payload_attestation_messages(),
+            pool_count_before + 1,
+            "payload attestation should be added to op pool"
+        );
+
         self
     }