diff --git a/ernie_chat.py b/ernie_chat.py
index 61b3363..951a967 100644
--- a/ernie_chat.py
+++ b/ernie_chat.py
@@ -65,7 +65,7 @@ class ErnieChat(PyOperator):
                 for k, v in m.items():
                     if ('role' and 'content' in m) and (m['role'] in ['system', 'assistant', 'user']):
                         if m['role'] == 'system':
-                            new_messages.append(m)
+                            new_messages.append({'role': 'user', 'content': m['content']})
                             new_messages.append({'role': 'assistant', 'content': 'OK.'})
                         else:
                             new_messages.append(m)