diff --git a/webv4/pages/001-forum.ssjs b/webv4/pages/001-forum.ssjs
index 88098b43530e1687631e05ae9ee7070b0d782500..517951ff648da5e49a316a85c615e797375548fc 100644
--- a/webv4/pages/001-forum.ssjs
+++ b/webv4/pages/001-forum.ssjs
@@ -392,7 +392,7 @@ if (typeof http_request.query.sub !== 'undefined' &&
 		];
 		if(!thread) {
 			writeln("Error: No such message.");
-			exit;
+			exit(0);
 		}
 		var keys = Object.keys(thread.messages);
 		thread.__first = keys[0];