diff --git a/tests/PhpSpreadsheetTests/CommentTest.php b/tests/PhpSpreadsheetTests/CommentTest.php
index 7d06162a..e55fe9cc 100644
--- a/tests/PhpSpreadsheetTests/CommentTest.php
+++ b/tests/PhpSpreadsheetTests/CommentTest.php
@@ -89,6 +89,7 @@ class CommentTest extends TestCase
         $spreadsheet = new Spreadsheet();
         $sheet = $spreadsheet->getActiveSheet();
         $sheet->getComment('A2')->getText()->createText('Comment to delete');
+        self::assertArrayHasKey('A2',$sheet->getComments());
         $sheet->removeComment('A2');
         self::assertEmpty($sheet->getComments());
     }