diff --git a/litellm/llms/vertex_ai/context_caching/transformation.py b/litellm/llms/vertex_ai/context_caching/transformation.py
index 950edbeb478..3d532113ba0 100644
--- a/litellm/llms/vertex_ai/context_caching/transformation.py
+++ b/litellm/llms/vertex_ai/context_caching/transformation.py
@@ -174,7 +174,9 @@ def transform_openai_messages_to_gemini_context_caching(
     )
 
     transformed_messages = _gemini_convert_messages_with_history(
-        messages=new_messages, model=model
+        messages=new_messages,
+        model=model,
+        custom_llm_provider=custom_llm_provider,
     )
 
     model_name = "models/{}".format(model)