diff --git a/eth2/types/src/lib.rs b/eth2/types/src/lib.rs
index 9bf60f2c9..76fcb43ed 100644
--- a/eth2/types/src/lib.rs
+++ b/eth2/types/src/lib.rs
@@ -72,4 +72,4 @@ pub type AttesterMap = HashMap<(u64, u64), Vec<usize>>;
 /// Maps a slot to a block proposer.
 pub type ProposerMap = HashMap<u64, usize>;
 
-pub use bls::{AggregatePublicKey, AggregateSignature, Keypair, PublicKey, Signature};
+pub use bls::{AggregatePublicKey, AggregateSignature, Keypair, PublicKey, SecretKey, Signature};