diff --git a/verifiers/clients/openai_chat_completions_client.py b/verifiers/clients/openai_chat_completions_client.py
index 174a72cf3..d47af8b0c 100644
--- a/verifiers/clients/openai_chat_completions_client.py
+++ b/verifiers/clients/openai_chat_completions_client.py
@@ -209,7 +209,7 @@ def from_chat_message(message: Message) -> OpenAIChatMessage:
                 return ChatCompletionToolMessageParam(
                     role="tool",
                     tool_call_id=message.tool_call_id,
-                    content=content_to_text(message.content),
+                    content=cast(Any, normalize_content(message.content)),
                 )
             elif isinstance(message, TextMessage):
                 return ChatCompletionUserMessageParam(