diff --git a/roslib/index.d.ts b/roslib/index.d.ts
index fbb6deff6e..14fe2c1e3e 100644
--- a/roslib/index.d.ts
+++ b/roslib/index.d.ts
@@ -66,6 +66,16 @@ declare namespace ROSLIB {
 		 */
 		callOnConnection(message:any):void;
 
+		/**
+		 * Retrieves list of actionlib servers in ROS as an array.
+		 *
+		 * @param callback function with params:
+		 *   * action_servers - Array of actionlib servers names
+		 * @param failedCallback - the callback function when the ros call failed (optional). Params:
+		 *   * error - the error message reported by ROS
+		 */
+    	getActionServers(callback:(action_servers:string[]) => void, failedCallback?:(error:any)=>void):void;
+
 		/**
 		 * Retrieves list of topics in ROS as an array.
 		 *