diff --git a/src/pipecat/adapters/services/open_ai_adapter.py b/src/pipecat/adapters/services/open_ai_adapter.py
index 3fa22cefe..478b2db2c 100644
--- a/src/pipecat/adapters/services/open_ai_adapter.py
+++ b/src/pipecat/adapters/services/open_ai_adapter.py
@@ -105,6 +105,8 @@ class OpenAILLMAdapter(BaseLLMAdapter[OpenAILLMInvocationParams]):
                         if item["type"] == "image_url":
                             if item["image_url"]["url"].startswith("data:image/"):
                                 item["image_url"]["url"] = "data:image/..."
+                        if item["type"] == "input_audio":
+                            item["input_audio"]["data"] = "..."
             if "mime_type" in msg and msg["mime_type"].startswith("image/"):
                 msg["data"] = "..."
             msgs.append(msg)