diff --git a/redis/redis-tests.ts b/redis/redis-tests.ts
index e64fa73781..9c7003541f 100644
--- a/redis/redis-tests.ts
+++ b/redis/redis-tests.ts
@@ -51,7 +51,9 @@ client.exists(str, numCallback);
 
 client.publish(str, value);
 client.subscribe(str);
+
 client.on(str, messageHandler);
+client.once(str, messageHandler);
 
 // ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ---- ----
 
@@ -61,4 +63,4 @@ client.get(args, resCallback);
 client.set(args);
 client.set(args, resCallback);
 
-client.incr(str, resCallback);
\ No newline at end of file
+client.incr(str, resCallback);
diff --git a/redis/redis.d.ts b/redis/redis.d.ts
index 913257d7ce..a3bd49e91b 100644
--- a/redis/redis.d.ts
+++ b/redis/redis.d.ts
@@ -5,6 +5,8 @@
 
 // Imported from: https://github.com/soywiz/typescript-node-definitions/redis.d.ts
 
+/// <reference path="../node/node.d.ts" />
+
 declare module "redis" {
   export function createClient(port_arg: number, host_arg?: string, options?: ClientOpts): RedisClient;
   export function createClient(unix_socket: string, options?: ClientOpts): RedisClient;
@@ -43,7 +45,7 @@ declare module "redis" {
 		auth_pass?: boolean;
 	}
 
-	interface RedisClient {
+	interface RedisClient extends NodeJS.EventEmitter {
     // event: connect
     // event: error
     // event: message
@@ -76,7 +78,6 @@ declare module "redis" {
 
     publish(channel: string, value: any): void;
     subscribe(channel: string): void;
-    on(channel: string, handler: MessageHandler): void;
 
     /*
     commands = set_union([