diff --git a/py/src/zenbase/predefined/generic_lm_function/optimizer.py b/py/src/zenbase/predefined/generic_lm_function/optimizer.py
index 7902d52..e6f983c 100644
--- a/py/src/zenbase/predefined/generic_lm_function/optimizer.py
+++ b/py/src/zenbase/predefined/generic_lm_function/optimizer.py
@@ -53,7 +53,6 @@ def generic_function(request):
             ]
 
             if request.zenbase.task_demos:
-                messages.append({"role": "system", "content": "Here are some examples:"})
                 messages.append({"role": "system", "content": "Here are some examples:"})
                 for demo in request.zenbase.task_demos:
                     messages.extend(