diff --git a/src/ed25519/mod.rs b/src/ed25519/mod.rs
index 613aab1..0734666 100644
--- a/src/ed25519/mod.rs
+++ b/src/ed25519/mod.rs
@@ -153,7 +153,7 @@ impl TryFrom<&[u8]> for Signature {
     type Error = Error;
 
     fn try_from(input: &[u8]) -> Result<Self> {
-        Signature::from_bytes(input).map_err(Error::from)
+        Signature::from_bytes(input)
     }
 }