diff --git a/src/expand.clj b/src/expand.clj
index c8ee81d..ecfe0e5 100644
--- a/src/expand.clj
+++ b/src/expand.clj
@@ -383,6 +383,7 @@
   (match template
     [:var x] (let [x* (offer-scopes x scopes)]
                (match (lookup x* env symtable)
+                 [:syntax [:ellipsis _]] (todo "ellipsis")
                  [:syntax syn] syn
                  :else x*))
     [:lit x] x