diff --git a/servers/link.cgi b/servers/link.cgi
index 0879f73a2..3459eb149 100755
--- a/servers/link.cgi
+++ b/servers/link.cgi
@@ -253,7 +253,7 @@ else {
 	}
 &close_http_connection($con);
 
-# register_link_websocket(url, &server, auth)
+# register_link_websocket(url, &server, auth, \%cache)
 # Registers a local miniserv websocket proxy for a websocket URL generated by
 # the linked Webmin server, and returns the local URL for the browser to use.
 sub register_link_websocket