diff --git a/src/client/Client.js b/src/client/Client.js
index 249951b22..a1ed2192e 100644
--- a/src/client/Client.js
+++ b/src/client/Client.js
@@ -267,7 +267,7 @@ class Client extends EventEmitter {
         }
       }
     }
-    this.emit('debug', `Swept ${swept} messages`);
+    this.emit('debug', `Swept ${swept} messages older than ${this.options.message_cache_lifetime} seconds`);
     return swept;
   }