diff --git a/src/apis/trans.js b/src/apis/trans.js
index f2656c5..0c73902 100644
--- a/src/apis/trans.js
+++ b/src/apis/trans.js
@@ -267,7 +267,7 @@ const genOpenAI = ({
       },
     ],
     temperature,
-    max_tokens: maxTokens,
+    max_completion_tokens: maxTokens,
   };
 
   const init = {