diff --git a/pilot/model/model_adapter.py b/pilot/model/model_adapter.py
index dfffa2f0b..3b809e669 100644
--- a/pilot/model/model_adapter.py
+++ b/pilot/model/model_adapter.py
@@ -166,10 +166,6 @@ class LLMModelAdaper:
                 can_use_systems = system_messages[:-1]
             else:
                 can_use_systems = system_messages
-        for i in range(len(user_messages)):
-            user_messages[-1] = system_messages[-1]
-            if len(system_messages) > 1:
-                can_use_system = system_messages[0]
 
         for i in range(len(user_messages)):
             conv.append_message(conv.roles[0], user_messages[i])
@@ -181,8 +177,6 @@ class LLMModelAdaper:
         else:
             conv.update_system_message("".join(can_use_systems))
 
-            conv.update_system_message(can_use_system)
-
         # Add a blank message for the assistant.
         conv.append_message(conv.roles[1], None)
         new_prompt = conv.get_prompt()