diff --git a/package.json b/package.json
index 05adf45..a515847 100644
--- a/package.json
+++ b/package.json
@@ -31,4 +31,4 @@
     "tslint": "^5.11.0",
     "tslint-config-prettier": "^1.17.0"
   }
-}
+}
\ No newline at end of file
diff --git a/test/test.ts b/test/test.ts
index e5d2042..30c2b4c 100644
--- a/test/test.ts
+++ b/test/test.ts
@@ -9,7 +9,7 @@ tap.test('should create an emitter ->', async () => {
   expect(myEventEmitter).to.be.instanceof(smartevent.EventEmitter);
 });
 
-tap.test('smartevent.once -> should return a promise', async (tools) => {
+tap.test('smartevent.once -> should return a promise', async tools => {
   const oncePromise = smartevent.once(myEventEmitter, 'customEvent');
   expect(oncePromise).to.be.instanceof(Promise);
   expect(oncePromise).to.not.be.rejected;