diff --git a/openpgp.d.ts b/openpgp.d.ts
index 50fe49de..d36b424f 100644
--- a/openpgp.d.ts
+++ b/openpgp.d.ts
@@ -518,12 +518,19 @@ export class SignaturePacket extends BasePacket {
   public issuerFingerprint: null | Uint8Array;
   public preferredAEADAlgorithms: enums.aead[] | null;
   public revoked: null | boolean;
+  public rawNotations: RawNotation[];
   public sign(key: AnySecretKeyPacket, data: Uint8Array, date?: Date, detached?: boolean): Promise<void>;
   public verify(key: AnyKeyPacket, signatureType: enums.signature, data: Uint8Array | object, date?: Date, detached?: boolean, config?: Config): Promise<void>; // throws on error
   public isExpired(date?: Date): boolean;
   public getExpirationTime(): Date | typeof Infinity;
 }
 
+export interface RawNotation {
+  name: string;
+  value: Uint8Array;
+  humanReadable: boolean;
+}
+
 export class TrustPacket extends BasePacket {
   static readonly tag: enums.packet.trust;
 }