diff --git a/tests/test_litellm/test_cost_calculator.py b/tests/test_litellm/test_cost_calculator.py
index db3e6511db2..18ab8a2a07a 100644
--- a/tests/test_litellm/test_cost_calculator.py
+++ b/tests/test_litellm/test_cost_calculator.py
@@ -2073,6 +2073,7 @@ def test_gemini_3_1_flash_lite_pricing():
         assert model_info["input_cost_per_token"] == 4.5e-07
         assert model_info["input_cost_per_audio_token"] == 9e-07
         assert model_info["output_cost_per_token"] == 2.7e-06
+        assert model_info["output_cost_per_reasoning_token"] == 2.7e-06
         assert model_info["cache_read_input_token_cost"] == 4.5e-08
         assert model_info["max_input_tokens"] == 1048576