diff --git a/src/expand.clj b/src/expand.clj
index b4c3cc6..086f7bd 100644
--- a/src/expand.clj
+++ b/src/expand.clj
@@ -498,11 +498,18 @@
   (let [c (atom {})]
     (clojure.walk/postwalk
      (fn [x]
-       (if (and (symbol? x) (str/starts-with? (name x) "scope__"))
-         (let [syms (swap! c #(if (contains? % x)
-                                %
-                                (assoc % x (symbol (str "s" (count %))))))]
-           (get syms x))
+       (if (instance? Variable x)
+         (let [[sym scopes] (destructure-variable x)
+               syms (swap!
+                     c
+                     #(let [r (set/difference scopes (keys %))]
+                        (into %
+                              (map-indexed
+                               (fn [n a]
+                                 [a (symbol (str "s" (+ (dec (count r)) n)))])
+                               r))))]
+           #_(->Variable sym (set (map #(get syms %) scopes)))
+           [sym (set (map #(get syms %) scopes))])
          x))
      datum)))