diff --git a/racket-webview.rkt b/racket-webview.rkt
index 3faace2..9edcee8 100644
--- a/racket-webview.rkt
+++ b/racket-webview.rkt
@@ -714,10 +714,11 @@
          (evt (format "[ ~a ]" (string-join
                                 (map (λ (e) (format "'~a'" e)) event*) ", ")))
          )
-    (let ((r (webview-call-js wv
-                              (format "return window.rkt_bind_evt_ids(~a, '~a', ~a, ~a)"
-                                      (wv-win-window-nr wv) sel evt
-                                      (if no-prevent-default 'true 'false)))))
+    (let* ((j (format "return window.rkt_bind_evt_ids(~a, '~a', ~a, ~a);"
+                      (wv-win-window-nr wv) sel evt (if no-prevent-default 'true 'false)))
+           (r (webview-call-js wv j))
+           )
+      (dbg-webview "called js: ~a" j)
       (map (λ (el)
              (list (string->symbol (car el)) (cadr el) (caddr el)))
            r))))