diff --git a/ts/domtools.classes.keyboard.ts b/ts/domtools.classes.keyboard.ts
index 9c87f45..5bd0795 100644
--- a/ts/domtools.classes.keyboard.ts
+++ b/ts/domtools.classes.keyboard.ts
@@ -128,8 +128,6 @@ export enum Key {
   Quote = 222,
 }
 
-type KeyCombo = Array<Key>;
-
 export class Keyboard {
   private mapCombosToHandlers = new Map<number[], plugins.smartrx.rxjs.Subject<KeyboardEvent>>();
   private pressedKeys = new Set<Key>();