diff --git a/consensus/types/src/eth_spec.rs b/consensus/types/src/eth_spec.rs
index cdbab2d5406..1c379f5de42 100644
--- a/consensus/types/src/eth_spec.rs
+++ b/consensus/types/src/eth_spec.rs
@@ -545,10 +545,12 @@ impl EthSpec for GnosisEthSpec {
 #[cfg(test)]
 mod test {
     use crate::{EthSpec, GnosisEthSpec, MainnetEthSpec, MinimalEthSpec};
+    use ssz_types::typenum::Unsigned;
 
     fn assert_valid_spec<E: EthSpec>() {
         E::kzg_commitments_tree_depth();
         E::block_body_tree_depth();
+        assert!(E::MaxValidatorsPerSlot::to_i32() >= E::MaxValidatorsPerCommittee::to_i32());
     }
 
     #[test]
diff --git a/consensus/types/src/indexed_attestation.rs b/consensus/types/src/indexed_attestation.rs
index 429d65898a9..900c9059389 100644
--- a/consensus/types/src/indexed_attestation.rs
+++ b/consensus/types/src/indexed_attestation.rs
@@ -120,7 +120,8 @@ impl<E: EthSpec> IndexedAttestation<E> {
                 let extended_attesting_indices: VariableList<u64, E::MaxValidatorsPerSlot> =
                     VariableList::new(att.attesting_indices.to_vec())
                         .expect("MaxValidatorsPerSlot must be >= MaxValidatorsPerCommittee");
-                // TODO: Add test after unstable rebase https://github.com/sigp/lighthouse/blob/474c1b44863927c588dd05ab2ac0f934298398e1/consensus/types/src/eth_spec.rs#L541
+                // Note a unit test in consensus/types/src/eth_spec.rs asserts this invariant for
+                // all known specs
 
                 IndexedAttestationElectra {
                     attesting_indices: extended_attesting_indices,