diff --git a/litellm/utils.py b/litellm/utils.py
index 3ac19ca1a8..433eb02153 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -2380,6 +2380,7 @@ def get_optional_params_transcription(
         "prompt": None,
         "response_format": None,
         "temperature": None,  # openai defaults this to 0
+        "timestamp_granularities": None
     }
 
     non_default_params = {