diff --git a/fastchat/serve/moderation/moderator.py b/fastchat/serve/moderation/moderator.py
index c5fbd042c..90b0299ec 100644
--- a/fastchat/serve/moderation/moderator.py
+++ b/fastchat/serve/moderation/moderator.py
@@ -17,6 +17,9 @@ def __init__(self):
         self.conv_moderation_responses: List[
             Dict[str, Dict[str, Union[str, Dict[str, float]]]]
         ] = []
+        self.text_flagged = False
+        self.csam_flagged = False
+        self.nsfw_flagged = False
 
     def _image_moderation_filter(self, image: Image) -> Tuple[bool, bool]:
         """Function that detects whether image violates moderation policies.
@@ -34,6 +37,11 @@ def _text_moderation_filter(self, text: str) -> bool:
         """
         raise NotImplementedError
 
+    def reset_moderation_flags(self):
+        self.text_flagged = False
+        self.csam_flagged = False
+        self.nsfw_flagged = False
+    
     def image_and_text_moderation_filter(
         self, image: Image, text: str
     ) -> Dict[str, Dict[str, Union[str, Dict[str, float]]]]:
@@ -77,9 +85,6 @@ def __init__(self, use_remote_storage: bool = False):
         to the moderation API.
         """
         super().__init__()
-        self.text_flagged = False
-        self.csam_flagged = False
-        self.nsfw_flagged = False
 
     def _image_moderation_request(
         self, image_bytes: bytes, endpoint: str, api_key: str
@@ -253,6 +258,7 @@ def image_and_text_moderation_filter(
             }
         """
         print("moderating text: ", text)
+        self.reset_moderation_flags()
         text_flagged_map = self.text_moderation_filter(text, model_list, do_moderation)
 
         if image is not None: