diff --git a/knots/web-server.scm b/knots/web-server.scm
index bd53a99..3a5bb5e 100644
--- a/knots/web-server.scm
+++ b/knots/web-server.scm
@@ -41,6 +41,7 @@
 
             make-chunked-output-port/knots
 
+            default-exception-handler
             default-write-response-exception-handler
 
             web-server?