diff --git a/src/digest/mod.rs b/src/digest/mod.rs
index 8effcbd..5ce47ef 100644
--- a/src/digest/mod.rs
+++ b/src/digest/mod.rs
@@ -14,7 +14,6 @@ pub enum DigestAlgorithm {
     SHA3256, // Sha3 version of sha256t
     SHA3512Half, // Sha3 version of sha512t_256
     SHA3512, // Sha3 version of sha512t
-    Unknown,
 }
 
 impl Default for DigestAlgorithm {