diff --git a/threejs/three-orbitcontrols.d.ts b/threejs/three-orbitcontrols.d.ts
index 4f905caa5..e2c4a3cae 100644
--- a/threejs/three-orbitcontrols.d.ts
+++ b/threejs/three-orbitcontrols.d.ts
@@ -38,5 +38,11 @@ declare module THREE {
         mouseButtons: { ORBIT: MOUSE; ZOOM: MOUSE; PAN: MOUSE; };
 
         update():void;
+        
+        // EventDispatcher mixins
+        addEventListener(type: string, listener: (event: any) => void ): void;
+        hasEventListener(type: string, listener: (event: any) => void): void;
+        removeEventListener(type: string, listener: (event: any) => void): void;
+        dispatchEvent(event: { type: string; target: any; }): void;
     }
-}
\ No newline at end of file
+}