diff --git a/wv-window.rkt b/wv-window.rkt
index 702083b..ce8d108 100644
--- a/wv-window.rkt
+++ b/wv-window.rkt
@@ -385,6 +385,9 @@
         )
       )
 
+    (define/public (set-attr! selector key value)
+      (webview-set-attr! wv selector key value))
+
     (define/public (set-title! title)
       (webview-set-title! wv title))