diff --git a/types/pg/index.d.ts b/types/pg/index.d.ts
index da6f4db575..258188c937 100644
--- a/types/pg/index.d.ts
+++ b/types/pg/index.d.ts
@@ -60,6 +60,12 @@ export interface QueryResult {
     rows: any[];
 }
 
+export interface Notification {
+    processId: number,
+    channel: string,
+    payload?: string
+}
+
 export interface ResultBuilder extends QueryResult {
     addRow(row: any): void;
 }
@@ -109,7 +115,7 @@ export declare class Client extends events.EventEmitter {
 
     on(event: "drain", listener: () => void): this;
     on(event: "error", listener: (err: Error) => void): this;
-    on(event: "notification" | "notice", listener: (message: any) => void): this;
+    on(event: "notification" | "notice", listener: (message: Notification) => void): this;
     on(event: "end", listener: () => void): this;
 }