diff --git a/signature.go b/signature.go
index e9ee350..7eb3ab1 100644
--- a/signature.go
+++ b/signature.go
@@ -70,7 +70,7 @@ func DefaultSignature(pemEncodedPublicKey []byte) Signature {
 			},
 			Reference: Reference{
 				Transforms: []Method{
-					{Algorithm: "http://www.w3.org/2000/09/xmldsig#enveloped-signature"},
+					Method{Algorithm: "http://www.w3.org/2000/09/xmldsig#enveloped-signature"},
 				},
 				DigestMethod: Method{
 					Algorithm: "http://www.w3.org/2000/09/xmldsig#sha1",