diff --git a/Cargo.toml b/Cargo.toml
index 1c1c3db..4d24261 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -12,7 +12,7 @@ keywords = ["cryptography", "encryption"]
 categories = ["cryptography"]
 
 [features]
-default = ["aes", "chacha", "ikm-management"]
+default = ["aes", "chacha", "ikm-management", "encrypt-at"]
 encryption = []
 aes = ["encryption", "aes-gcm", "hkdf", "sha2"]
 chacha = ["encryption", "chacha20poly1305", "blake3"]