diff --git a/beacon_node/lighthouse_network/src/types/pubsub.rs b/beacon_node/lighthouse_network/src/types/pubsub.rs
index 4c7e115aed7..4af0f54f31e 100644
--- a/beacon_node/lighthouse_network/src/types/pubsub.rs
+++ b/beacon_node/lighthouse_network/src/types/pubsub.rs
@@ -239,7 +239,6 @@ impl<E: EthSpec> PubsubMessage<E> {
                         Ok(PubsubMessage::ProposerSlashing(Box::new(proposer_slashing)))
                     }
                     GossipKind::AttesterSlashing => {
-                        // TODO(electra): could an older attester slashing still be floating around during the fork transition?
                         let attester_slashing =
                             match fork_context.from_context_bytes(gossip_topic.fork_digest) {
                                 Some(ForkName::Base)
diff --git a/testing/ef_tests/src/cases/operations.rs b/testing/ef_tests/src/cases/operations.rs
index d76620bd22d..b922668c0a0 100644
--- a/testing/ef_tests/src/cases/operations.rs
+++ b/testing/ef_tests/src/cases/operations.rs
@@ -122,8 +122,15 @@ impl<E: EthSpec> Operation<E> for AttesterSlashing<E> {
         "attester_slashing".into()
     }
 
-    fn decode(path: &Path, _fork_name: ForkName, _spec: &ChainSpec) -> Result<Self, Error> {
-        Ok(Self::Base(ssz_decode_file(path)?))
+    fn decode(path: &Path, fork_name: ForkName, _spec: &ChainSpec) -> Result<Self, Error> {
+        Ok(match fork_name {
+            ForkName::Base
+            | ForkName::Altair
+            | ForkName::Bellatrix
+            | ForkName::Capella
+            | ForkName::Deneb => Self::Base(ssz_decode_file(path)?),
+            ForkName::Electra => Self::Electra(ssz_decode_file(path)?),
+        })
     }
 
     fn apply_to(