diff --git a/__tests__/main.test.ts b/__tests__/main.test.ts
index 6f7475e..fd206d7 100644
--- a/__tests__/main.test.ts
+++ b/__tests__/main.test.ts
@@ -5,7 +5,7 @@ import * as path from 'path'
 
 test('throws invalid number', async() => {
     const input = parseInt('foo', 10);
-    await expect(wait(input)).rejects.toThrow('milleseconds not a number');
+    await expect(wait(input)).rejects.toThrow('milliseconds not a number');
 });
 
 test('wait 500 ms', async() => {
@@ -24,4 +24,4 @@ test('test runs', () => {
         env: process.env
     };
     console.log(cp.execSync(`node ${ip}`, options).toString());
-});
\ No newline at end of file
+});