diff --git a/beacon_node/http_api/tests/tests.rs b/beacon_node/http_api/tests/tests.rs
index 53abca67ad..8eabdeb36a 100644
--- a/beacon_node/http_api/tests/tests.rs
+++ b/beacon_node/http_api/tests/tests.rs
@@ -3289,7 +3289,7 @@ impl ApiTester {
             .chain
             .spec
             .fork_name_at_slot::<E>(self.chain.slot().unwrap())
-            >= ForkName::Electra
+            .electra_enabled()
         {
             for attestation in self.chain.naive_aggregation_pool.read().iter() {
                 let result = self
diff --git a/common/eth2/src/lib.rs b/common/eth2/src/lib.rs
index ff85d6e64f..e6fa6eb02f 100644
--- a/common/eth2/src/lib.rs
+++ b/common/eth2/src/lib.rs
@@ -346,7 +346,7 @@ impl BeaconNodeHttpClient {
         Ok(())
     }
 
-    /// Perform a HTTP POST request with a custom timeout.
+    /// Perform a HTTP POST request with a custom timeout and consensus header.
     async fn post_with_timeout_and_consensus_header<T: Serialize, U: IntoUrl>(
         &self,
         url: U,
@@ -410,6 +410,7 @@ impl BeaconNodeHttpClient {
 
     /// Generic POST function supporting arbitrary responses and timeouts.
     /// Does not include Content-Type application/json in the request header.
+    /// Does include Eth-Consensus-Version in the request header.
     async fn post_generic_json_without_content_type_header_but_with_consensus_header<
         T: Serialize,
         U: IntoUrl,
@@ -2358,7 +2359,7 @@ impl BeaconNodeHttpClient {
         slot: Slot,
         attestation_data_root: Hash256,
         committee_index: CommitteeIndex,
-    ) -> Result<Option<GenericResponse<Attestation<E>>>, Error> {
+    ) -> Result<Option<ForkVersionedResponse<Attestation<E>>>, Error> {
         let mut path = self.eth_path(V2)?;
 
         path.path_segments_mut()
diff --git a/consensus/types/src/attestation.rs b/consensus/types/src/attestation.rs
index 1acaee9654..1ee6c437c9 100644
--- a/consensus/types/src/attestation.rs
+++ b/consensus/types/src/attestation.rs
@@ -487,6 +487,23 @@ impl<'a, E: EthSpec> From<AttestationRefOnDisk<'a, E>> for AttestationRef<'a, E>
     }
 }
 
+impl<E: EthSpec> ForkVersionDeserialize for Attestation<E> {
+    fn deserialize_by_fork<'de, D: serde::Deserializer<'de>>(
+        value: serde_json::Value,
+        fork_name: crate::ForkName,
+    ) -> Result<Self, D::Error> {
+        if fork_name.electra_enabled() {
+            let attestation: AttestationElectra<E> =
+                serde_json::from_value(value).map_err(serde::de::Error::custom)?;
+            Ok(Attestation::Electra(attestation))
+        } else {
+            let attestation: AttestationBase<E> =
+                serde_json::from_value(value).map_err(serde::de::Error::custom)?;
+            Ok(Attestation::Base(attestation))
+        }
+    }
+}
+
 impl<E: EthSpec> ForkVersionDeserialize for Vec<Attestation<E>> {
     fn deserialize_by_fork<'de, D: serde::Deserializer<'de>>(
         value: serde_json::Value,
diff --git a/validator_client/src/attestation_service.rs b/validator_client/src/attestation_service.rs
index 5167f8b649..30fe508a2c 100644
--- a/validator_client/src/attestation_service.rs
+++ b/validator_client/src/attestation_service.rs
@@ -548,7 +548,7 @@ impl<T: SlotClock + 'static, E: EthSpec> AttestationService<T, E> {
                         &metrics::ATTESTATION_SERVICE_TIMES,
                         &[metrics::AGGREGATES_HTTP_GET],
                     );
-                    let aggregate_attestation_result = if fork_name.electra_enabled() {
+                    if fork_name.electra_enabled() {
                         beacon_node
                             .get_validator_aggregate_attestation_v2(
                                 attestation_data.slot,
@@ -556,6 +556,13 @@ impl<T: SlotClock + 'static, E: EthSpec> AttestationService<T, E> {
                                 committee_index,
                             )
                             .await
+                            .map_err(|e| {
+                                format!("Failed to produce an aggregate attestation: {:?}", e)
+                            })?
+                            .ok_or_else(|| {
+                                format!("No aggregate available for {:?}", attestation_data)
+                            })
+                            .map(|result| result.data)
                     } else {
                         beacon_node
                             .get_validator_aggregate_attestation_v1(
@@ -563,14 +570,14 @@ impl<T: SlotClock + 'static, E: EthSpec> AttestationService<T, E> {
                                 attestation_data.tree_hash_root(),
                             )
                             .await
-                    };
-
-                    aggregate_attestation_result
-                        .map_err(|e| {
-                            format!("Failed to produce an aggregate attestation: {:?}", e)
-                        })?
-                        .ok_or_else(|| format!("No aggregate available for {:?}", attestation_data))
-                        .map(|result| result.data)
+                            .map_err(|e| {
+                                format!("Failed to produce an aggregate attestation: {:?}", e)
+                            })?
+                            .ok_or_else(|| {
+                                format!("No aggregate available for {:?}", attestation_data)
+                            })
+                            .map(|result| result.data)
+                    }
                 },
             )
             .await