diff --git a/tests/generation/test_stopping_criteria.py b/tests/generation/test_stopping_criteria.py
index 4c6878882bb7e7..ec19512bf279f1 100644
--- a/tests/generation/test_stopping_criteria.py
+++ b/tests/generation/test_stopping_criteria.py
@@ -122,6 +122,8 @@ def test_stop_string_criteria(self):
             "<|im_start|><|im_end|<|im_end|",
             "<|im_end|><|im_start|>",
             "<|im_end|<>stop<|im_end|",
+            "en d",
+            "eNd",
         ]
         too_short_strings = [
             "<|im_end|",