diff --git a/litellm/utils.py b/litellm/utils.py
index a8e872bd2..820e22afc 100644
--- a/litellm/utils.py
+++ b/litellm/utils.py
@@ -11387,8 +11387,13 @@ class CustomStreamWrapper:
                 if (
                     self.stream_options
                     and self.stream_options.get("include_usage", False) == True
+                    and response_obj["usage"] is not None
                 ):
-                    model_response.usage = response_obj["usage"]
+                    model_response.usage = litellm.Usage(
+                        prompt_tokens=response_obj["usage"].prompt_tokens,
+                        completion_tokens=response_obj["usage"].completion_tokens,
+                        total_tokens=response_obj["usage"].total_tokens,
+                    )
             elif self.custom_llm_provider == "databricks":
                 response_obj = litellm.DatabricksConfig()._chunk_parser(chunk)
                 completion_obj["content"] = response_obj["text"]
@@ -11398,8 +11403,13 @@ class CustomStreamWrapper:
                 if (
                     self.stream_options
                     and self.stream_options.get("include_usage", False) == True
+                    and response_obj["usage"] is not None
                 ):
-                    model_response.usage = response_obj["usage"]
+                    model_response.usage = litellm.Usage(
+                        prompt_tokens=response_obj["usage"].prompt_tokens,
+                        completion_tokens=response_obj["usage"].completion_tokens,
+                        total_tokens=response_obj["usage"].total_tokens,
+                    )
             elif self.custom_llm_provider == "azure_text":
                 response_obj = self.handle_azure_text_completion_chunk(chunk)
                 completion_obj["content"] = response_obj["text"]