diff --git a/knots/web-server.scm b/knots/web-server.scm
index 60b3f06..b51ca00 100644
--- a/knots/web-server.scm
+++ b/knots/web-server.scm
@@ -385,7 +385,8 @@ on the procedure being called at any particular time."
                                      #f
                                      "wrong number of values returned from handler, expecting 2, got ~A"
                                      (length other)))
-                                   handler)))))))))))))))
+                                   handler))))))))))
+               #:unwind? #t)))))
       (with-exception-handler
           (lambda (exn)
             (write-response-exception-handler exn request))