diff --git a/ts-lua/types/Events.d.ts b/ts-lua/types/Events.d.ts
index 0030975..ac8b6f4 100644
--- a/ts-lua/types/Events.d.ts
+++ b/ts-lua/types/Events.d.ts
@@ -5,12 +5,14 @@
  */
 declare namespace hook {
 
+    type eventNames = "exit"|"chat"|"player_join"|"player_leave"|"script";
+
     function add_event_listener(eventName: "exit", callback: (code: integer) => void|never): int;
     function add_event_listener(eventName: "chat", callback: (player: integer, body: string) => void|never): int;
     function add_event_listener(eventName: "player_join", callback: (player: integer) => void|never): int;
     function add_event_listener(eventName: "player_leave", callback: (player: integer) => void|never): int;
     function add_event_listener(eventName: "script", callback: (id: integer, params: vector<int>) => void|never): int;
 
-    function remove_event_listener(eventName: string, id: int): boolean;
+    function remove_event_listener(eventName: eventNames, id: int): boolean;
 
 }
\ No newline at end of file