diff --git a/test/components/generators/test_openai.py b/test/components/generators/test_openai.py
index 047299b199..2b5e73d85c 100644
--- a/test/components/generators/test_openai.py
+++ b/test/components/generators/test_openai.py
@@ -326,10 +326,10 @@ def test_run_with_system_prompt(self):
             system_prompt="You answer in Portuguese, regardless of the language on which a question is asked",
         )
         result = generator.run("Can you explain the Pitagoras therom?")
-        assert "teorema" in result["replies"][0]
+        assert "teorema" in result["replies"][0].lower()
 
         result = generator.run(
             "Can you explain the Pitagoras therom?",
             system_prompt="You answer in German, regardless of the language on which a question is asked.",
         )
-        assert "Pythagoras" in result["replies"][0]
+        assert "pythagoras".lower() in result["replies"][0].lower()