diff --git a/repeater/handler_helpers/advert.py b/repeater/handler_helpers/advert.py
index 377f902..0c64f2e 100644
--- a/repeater/handler_helpers/advert.py
+++ b/repeater/handler_helpers/advert.py
@@ -55,7 +55,8 @@ class AdvertHelper:
             
             if not advert_data or not advert_data.get("valid"):
                 logger.debug("Invalid advert packet")
-                return
+                packet.mark_do_not_retransmit()
+
             
             # Extract data from parsed advert
             pubkey = advert_data["public_key"]