diff --git a/proxy/src/main/resources/default-velocity.toml b/proxy/src/main/resources/default-velocity.toml
index fe3ad5942..050b9c1fe 100644
--- a/proxy/src/main/resources/default-velocity.toml
+++ b/proxy/src/main/resources/default-velocity.toml
@@ -105,7 +105,8 @@ connection-timeout = 5000
 # Specify a read timeout for connections here. The default is 30 seconds.
 read-timeout = 30000
 
-# Enables compatibility with HAProxy.
+# Enables compatibility with HAProxy's PROXY protocol. If you don't know what this is for, then
+# don't enable it.
 haproxy-protocol = false
 
 # Enables TCP fast open support on the proxy. Requires the proxy to run on Linux.