diff --git a/Crypto/PubKey/Ed25519.hs b/Crypto/PubKey/Ed25519.hs
index ffb144f..9656e56 100644
--- a/Crypto/PubKey/Ed25519.hs
+++ b/Crypto/PubKey/Ed25519.hs
@@ -42,7 +42,7 @@ import           Crypto.Random
 
 -- | An Ed25519 Secret key
 newtype SecretKey = SecretKey ScrubbedBytes
-    deriving (Eq,ByteArrayAccess,NFData)
+    deriving (Show,Eq,ByteArrayAccess,NFData)
 
 -- | An Ed25519 public key
 newtype PublicKey = PublicKey Bytes
diff --git a/Crypto/PubKey/Ed448.hs b/Crypto/PubKey/Ed448.hs
index acd751c..726f61b 100644
--- a/Crypto/PubKey/Ed448.hs
+++ b/Crypto/PubKey/Ed448.hs
@@ -46,7 +46,7 @@ import           Crypto.Random
 
 -- | An Ed448 Secret key
 newtype SecretKey = SecretKey ScrubbedBytes
-    deriving (Eq,ByteArrayAccess,NFData)
+    deriving (Show,Eq,ByteArrayAccess,NFData)
 
 -- | An Ed448 public key
 newtype PublicKey = PublicKey Bytes