diff --git a/config.js.example b/config.js.example
index ac1afb7..8bd8f0b 100644
--- a/config.js.example
+++ b/config.js.example
@@ -62,7 +62,7 @@ module.exports = {
   //
   // Setting as 0 will store known events to memory without limit until the subscription is closed.
   // Reduce this value if memory usage is high. But don't go too low as duplicates will be forwarded to client.
-  max_known_events: 0,
+  max_known_events: 5000,
 
   // Wait for every connected relays send EOSE.
   // Could improve accuracy on received events.