diff --git a/accesscontrol/attributes/attributes.go b/accesscontrol/attributes/attributes.go
index 94251446572..9ccca5536ab 100644
--- a/accesscontrol/attributes/attributes.go
+++ b/accesscontrol/attributes/attributes.go
@@ -43,10 +43,10 @@ var (
 
 	padding = []byte{255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255}
 
-	//headerPrefix is the prefix used in the header exteion of the certificate.
+	//headerPrefix is the prefix used in the header extension of the certificate.
 	headerPrefix = "00HEAD"
 
-	//HeaderAttributeName is the name used to derivate the K used to encrypt/decrypt the header.
+	//HeaderAttributeName is the name used to derive the K used to encrypt/decrypt the header.
 	HeaderAttributeName = "attributeHeader"
 )
 
diff --git a/accesscontrol/crypto/ecdsa/hash.go b/accesscontrol/crypto/ecdsa/hash.go
index 6317cad7c5c..696fd2ae1b7 100644
--- a/accesscontrol/crypto/ecdsa/hash.go
+++ b/accesscontrol/crypto/ecdsa/hash.go
@@ -70,7 +70,7 @@ func computeHash(msg []byte, bitsize int) ([]byte, error) {
 	case "SHA3":
 		hash, err = getHashSHA3(bitsize)
 	default:
-		return nil, fmt.Errorf("Invalid hash algorithm " + primitives.GetHashAlgorithm())
+		return nil, fmt.Errorf("Invalid hash algorithm %s", primitives.GetHashAlgorithm())
 	}
 
 	if err != nil {