diff --git a/lib/js/parser.sx b/lib/js/parser.sx
index 3f593dd3..91e9f3c7 100644
--- a/lib/js/parser.sx
+++ b/lib/js/parser.sx
@@ -760,6 +760,28 @@
             (do
               (jp-advance! st)
               (append! params (list (quote js-rest) nm))))))
+      ((jp-at? st "punct" "{")
+        (begin
+          (jp-skip-balanced st "{" "}")
+          (append! params "__destruct_param__")
+          (when
+            (jp-at? st "op" "=")
+            (begin (jp-advance! st) (jp-parse-assignment st)))
+          (cond
+            ((jp-at? st "punct" ",")
+              (begin (jp-advance! st) (jp-parse-param-list-loop st params)))
+            (else nil))))
+      ((jp-at? st "punct" "[")
+        (begin
+          (jp-skip-balanced st "[" "]")
+          (append! params "__destruct_param__")
+          (when
+            (jp-at? st "op" "=")
+            (begin (jp-advance! st) (jp-parse-assignment st)))
+          (cond
+            ((jp-at? st "punct" ",")
+              (begin (jp-advance! st) (jp-parse-param-list-loop st params)))
+            (else nil))))
       ((= (get (jp-peek st) :type) "ident")
         (do
           (let