diff --git a/config.yml b/config.yml
index 178ca14..eefb995 100644
--- a/config.yml
+++ b/config.yml
@@ -6,3 +6,6 @@ max_entries: 2 # Delete this line to get all
 feeds:
   - https://programadorwebvalencia.com/feed/
   - https://republicaweb.es/feed/
+filter_strings:
+  - unwanted
+  - exclude_this