diff --git a/nanobot/providers/openai_compat_provider.py b/nanobot/providers/openai_compat_provider.py
index ffb221e50..07dd811e4 100644
--- a/nanobot/providers/openai_compat_provider.py
+++ b/nanobot/providers/openai_compat_provider.py
@@ -230,6 +230,7 @@ class OpenAICompatProvider(LLMProvider):
             "model": model_name,
             "messages": self._sanitize_messages(self._sanitize_empty_content(messages)),
             "max_tokens": max(1, max_tokens),
+            "max_completion_tokens": max(1, max_tokens),
             "temperature": temperature,
         }