diff --git a/crypto/signify/signify.go b/crypto/signify/signify.go
index eb029e5099..f21f06a8e3 100644
--- a/crypto/signify/signify.go
+++ b/crypto/signify/signify.go
@@ -32,7 +32,7 @@ import (
 
 var (
 	errInvalidKeyHeader = errors.New("incorrect key header")
-	errInvalidKeyLength = errors.New("invalid, key length != 104")
+	errInvalidKeyLength = errors.New("invalid key length != 104")
 )
 
 func parsePrivateKey(key string) (k ed25519.PrivateKey, header []byte, keyNum []byte, err error) {