diff --git a/lookyloo/indexing.py b/lookyloo/indexing.py
index fe005edb..621a4f34 100644
--- a/lookyloo/indexing.py
+++ b/lookyloo/indexing.py
@@ -462,6 +462,10 @@ class Indexing():
 
     def get_captures_url_count(self, url: str) -> int:
         md5 = hashlib.md5(url.encode()).hexdigest()
+        if self.redis.type(f'urls|{md5}|captures') == 'set':  # type: ignore[no-untyped-call]
+            # triggers the re-index soon.
+            self.redis.srem('indexed_urls', *self.redis.smembers(f'urls|{md5}|captures'))
+            return []
         return self.redis.zcard(f'urls|{md5}|captures')
 
     def get_captures_hostname(self, hostname: str, most_recent_capture: datetime | None = None,
@@ -481,6 +485,10 @@ class Indexing():
         return self.redis.zrevrangebyscore(f'hostnames|{hostname}|captures', max_score, min_score, withscores=True)
 
     def get_captures_hostname_count(self, hostname: str) -> int:
+        if self.redis.type(f'hostnames|{hostname}|captures') == 'set':  # type: ignore[no-untyped-call]
+            # triggers the re-index soon.
+            self.redis.srem('indexed_urls', *self.redis.smembers(f'hostnames|{hostname}|captures'))
+            return []
         return self.redis.zcard(f'hostnames|{hostname}|captures')
 
     def get_capture_url_counter(self, capture_uuid: str, url: str) -> int: