diff --git a/src/blackbox/vlms.py b/src/blackbox/vlms.py
index 1a65fbf..2ff2b15 100644
--- a/src/blackbox/vlms.py
+++ b/src/blackbox/vlms.py
@@ -76,6 +76,8 @@ class VLMS(Blackbox):
             "top_k": self.top_k,
             "ignore_eos": self.ignore_eos,
             "skip_special_tokens": self.skip_special_tokens,
+            # "system_prompt":"",
+            # "vlm_model_name":" ",
         }
 
 
@@ -99,7 +101,7 @@ class VLMS(Blackbox):
             history: a list
         """
         if settings:
-            for k in settings:
+            for k in list(settings.keys()):
                 if k not in self.settings:
                     print("Warning: '{}' is not a support argument and ignore this argment, check the arguments {}".format(k,self.settings.keys()))
                     settings.pop(k)