diff --git a/v1loc.go b/v1loc.go
index 0e3551e..ea01e39 100644
--- a/v1loc.go
+++ b/v1loc.go
@@ -13,10 +13,10 @@ import (
 )
 
 const (
+	v1LocHeader    = "v1.local."
 	v1LocNonceSize = 32
 	v1LocNonceHalf = v1LocNonceSize / 2
 	v1LocMacSize   = 48 // const for crypty.SHA384.Size()
-	v1LocHeader    = "v1.local."
 )
 
 func V1Encrypt(key []byte, payload, footer any, randBytes []byte) (string, error) {
@@ -96,7 +96,7 @@ func V1Decrypt(token string, key []byte, payload, footer any) error {
 	}
 
 	if !hmac.Equal(h.Sum(nil), mac) {
-		return fmt.Errorf("token signature: %w", ErrInvalidTokenAuth)
+		return ErrInvalidTokenAuth
 	}
 
 	block, err := aes.NewCipher(encKey)
diff --git a/v1loc_test.go b/v1loc_test.go
index 7c284ef..25f9398 100644
--- a/v1loc_test.go
+++ b/v1loc_test.go
@@ -21,9 +21,7 @@ func TestV1Loc_Encrypt(t *testing.T) {
 			nonce := must(hex.DecodeString(tc.Nonce))
 
 			token, err := V1Encrypt(key, payload, footer, nonce)
-			if err != nil {
-				t.Fatal(err)
-			}
+			mustOk(t, err)
 			mustEqual(t, token, tc.Token)
 		})
 	}