diff --git a/openmls/src/ciphersuite/hpke.rs b/openmls/src/ciphersuite/hpke.rs
index ba8f5dccae..3818568789 100644
--- a/openmls/src/ciphersuite/hpke.rs
+++ b/openmls/src/ciphersuite/hpke.rs
@@ -68,6 +68,7 @@ impl From<CryptoError> for Error {
     }
 }
 
+// Context for HPKE encryption
 #[derive(Debug, Clone, TlsSerialize, TlsDeserialize, TlsDeserializeBytes, TlsSize)]
 pub struct EncryptContext {
     label: VLBytes,