diff --git a/.config/example.yml b/.config/example.yml
index 1caaf87eab..59d0708877 100644
--- a/.config/example.yml
+++ b/.config/example.yml
@@ -424,4 +424,6 @@ checkActivityPubGetSignature: false
 
 # Transparently compress every websocket message on clients that support it.
 # Trades server CPU usage for reduced bandwidth usage and a faster frontend on the client.
+# If you're not using jemalloc, this may cause memory fragmentation and performance issues! (https://www.npmjs.com/package/ws#websocket-compression)
+# jemalloc is used by default in the Sharkey Docker image and may be set up manually otherwise: https://github.com/jemalloc/jemalloc/wiki/getting-started
 websocketCompression: false