diff --git a/src/common/input/Keyboard.test.ts b/src/common/input/Keyboard.test.ts
index cc36c1d0..8c7f0dbc 100644
--- a/src/common/input/Keyboard.test.ts
+++ b/src/common/input/Keyboard.test.ts
@@ -350,11 +350,15 @@ describe('Keyboard', () => {
     });
 
     it('should return proper sequence for ctrl+@', () => {
-      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, shiftKey: true, keyCode: 50, key: '@' }).key, '\x00');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, shiftKey: true, keyCode: 50, code: 'Digit2', key: '@' }).key, '\x00');
     });
 
     it('should return proper sequence for ctrl+^', () => {
-      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, shiftKey: true, keyCode: 54, key: '^' }).key, '\x1e');
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, shiftKey: true, keyCode: 54, code: 'Digit6', key: '^' }).key, '\x1e');
+    });
+
+    it('should return proper sequence for ctrl+_', () => {
+      assert.equal(testEvaluateKeyboardEvent({ ctrlKey: true, shiftKey: true, keyCode: 189, code: 'Minus', key: '_' }).key, '\x1f');
     });
 
   });