diff --git a/litellm/responses/litellm_completion_transformation/transformation.py b/litellm/responses/litellm_completion_transformation/transformation.py
index 5c11ff7e78c..5501e87bfe4 100644
--- a/litellm/responses/litellm_completion_transformation/transformation.py
+++ b/litellm/responses/litellm_completion_transformation/transformation.py
@@ -454,9 +454,7 @@ class LiteLLMCompletionResponsesConfig:
         )
 
         if system_contents:
-            messages.append(
-                LiteLLMCompletionResponsesConfig._merge_system_contents(system_contents)
-            )
+            messages.append(LiteLLMCompletionResponsesConfig._merge_system_contents(system_contents))
 
         messages.extend(message for message in input_messages if message.get("role") != "system")