diff --git a/src/ts/process/request.ts b/src/ts/process/request.ts
index 38b2b9b2..83cb0264 100644
--- a/src/ts/process/request.ts
+++ b/src/ts/process/request.ts
@@ -989,7 +989,7 @@ export async function requestChatDataMain(arg:requestDataArgument, model:'model'
 
 
 
-                let requestPrompt = formated.map((v) => {
+                let requestPrompt = formated.map((v, i) => {
                     let prefix = ''
                     switch (v.role){
                         case "assistant":
@@ -1002,6 +1002,11 @@ export async function requestChatDataMain(arg:requestDataArgument, model:'model'
                             prefix = "\n\nSystem: "
                             break
                     }
+                    if(raiModel.startsWith('claude-2') && (!raiModel.startsWith('claude-2.0'))){
+                        if(v.role === 'system' && i === 0){
+                            prefix = ''
+                        }
+                    }
                     return prefix + v.content
                 }).join('') + '\n\nAssistant: '