diff --git a/litellm/utils.py b/litellm/utils.py
index a33a160e4de..76c93d5898b 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -8301,7 +8301,7 @@ class CustomStreamWrapper:
             logprobs = None
             usage = None
             original_chunk = None  # this is used for function/tool calling
-            if len(str_line.choices) > 0:
+            if str_line and str_line.choices and len(str_line.choices) > 0:
                 if (
                     str_line.choices[0].delta is not None
                     and str_line.choices[0].delta.content is not None