diff --git a/src/api/api.ts b/src/api/api.ts
index 2667394f1..55f785a4f 100644
--- a/src/api/api.ts
+++ b/src/api/api.ts
@@ -27,7 +27,7 @@ async function prepareStreamAndGetResponse(customHeaders: Record<string, string>
   }
 
   if(!modelCost[tempConfig.model].supportTemperature) {
-    config.temperature = 1;
+    tempConfig.temperature = 1;
   }
 
   const adjustedMessagesTuple = limitMessageTokens(