diff --git a/openpgp/keys_test.go b/openpgp/keys_test.go
index c1478771..57cd67be 100644
--- a/openpgp/keys_test.go
+++ b/openpgp/keys_test.go
@@ -982,24 +982,24 @@ func assertNotationPackets(t *testing.T, keys EntityList) {
 		t.Fatalf("got %d Data Notation subpackets, expected %d", numSigs, numExpected)
 	}
 
-	if notations[0].IsHumanReadable() != true {
+	if notations[0].HumanReadable != true {
 		t.Fatalf("got false, expected true")
 	}
 
-	if notations[0].GetName() != "test@example.com" {
-		t.Fatalf("got %s, expected test@example.com", notations[0].GetName())
+	if notations[0].Name != "test@example.com" {
+		t.Fatalf("got %s, expected test@example.com", notations[0].Name)
 	}
 
-	if notations[0].GetStringValue() != "2" {
-		t.Fatalf("got %s, expected 2", notations[0].GetName())
+	if string(notations[0].Value) != "2" {
+		t.Fatalf("got %s, expected 2", string(notations[0].Value))
 	}
 
-	if notations[1].GetName() != "test@example.com" {
-		t.Fatalf("got %s, expected test@example.com", notations[0].GetName())
+	if notations[1].Name != "test@example.com" {
+		t.Fatalf("got %s, expected test@example.com", notations[1].Name)
 	}
 
-	if notations[1].GetStringValue() != "3" {
-		t.Fatalf("got %s, expected 3", notations[0].GetName())
+	if string(notations[1].Value) != "3" {
+		t.Fatalf("got %s, expected 3", string(notations[1].Value))
 	}
 }
 
diff --git a/openpgp/packet/notation.go b/openpgp/packet/notation.go
index 967b00fb..5c215c2e 100644
--- a/openpgp/packet/notation.go
+++ b/openpgp/packet/notation.go
@@ -3,43 +3,27 @@ package packet
 // Notation type represents a Notation Data subpacket
 // see https://tools.ietf.org/html/rfc4880#section-5.2.3.16
 type Notation struct {
-	flags      []byte
-	name       string
-	value      []byte
-	critical   bool
+	Name string
+	Value []byte
+	Critical bool
+	HumanReadable bool
 }
 
-func (not *Notation) IsHumanReadable() (bool) {
-	return not.flags[0] & 0x80 == 0x80
-}
-
-func (not *Notation) GetName() (string) {
-	return not.name
-}
-
-func (not *Notation) GetBinaryValue() ([]byte) {
-	return not.value
-}
-
-func (not *Notation) GetStringValue() (string) {
-	return string(not.value)
-}
-
-func (not *Notation) IsCritical() (bool) {
-	return not.critical
-}
+func (not *Notation) getData() []byte {
+	nameData := []byte(not.Name)
+	nameLen := len(nameData)
+	valueLen := len(not.Value)
 
-func (not *Notation) getData() ([]byte) {
-	nameLen := len(not.name)
-	valueLen := len(not.value)
-	nameData := []byte(not.name)
+	data := make([]byte, 8 + nameLen + valueLen)
+	if not.HumanReadable {
+		data[0] = 0x80
+	}
 
-	data := not.flags
 	data[4] = byte(nameLen >> 8)
 	data[5] = byte(nameLen)
 	data[6] = byte(valueLen >> 8)
 	data[7] = byte(valueLen)
 
 	data = append(data, nameData...)
-	return append(data, not.value...)
+	return append(data, not.Value...)
 }
diff --git a/openpgp/packet/signature.go b/openpgp/packet/signature.go
index 225266b5..94689231 100644
--- a/openpgp/packet/signature.go
+++ b/openpgp/packet/signature.go
@@ -343,10 +343,10 @@ func parseSignatureSubpacket(sig *Signature, subpacket []byte, isHashed bool) (r
 		}
 
 		notation := Notation{
-			flags: subpacket[0:4],
-			name: string(subpacket[8: (nameLength + 8)]),
-			value: subpacket[(nameLength + 8) : (valueLength + nameLength + 8)],
-			critical: isCritical,
+			HumanReadable: (subpacket[0] & 0x80) == 0x80,
+			Name: string(subpacket[8: (nameLength + 8)]),
+			Value: subpacket[(nameLength + 8) : (valueLength + nameLength + 8)],
+			Critical: isCritical,
 		}
 
 		sig.Notations = append(sig.Notations, notation)
@@ -911,7 +911,7 @@ func (sig *Signature) buildSubpackets(issuer PublicKey) (subpackets []outputSubp
 			outputSubpacket{
 				true,
 				notationDataSubpacket,
-				notation.IsCritical(),
+				notation.Critical,
 				notation.getData(),
 			})
 	}