diff --git a/src/sass4clj/integrant.clj b/src/sass4clj/integrant.clj
index bbf3234..383463c 100644
--- a/src/sass4clj/integrant.clj
+++ b/src/sass4clj/integrant.clj
@@ -15,5 +15,5 @@
   (if (= opts old-opts)
     old-impl
     (do
-      (ig/halt-key! key old-opts)
+      (ig/halt-key! key old-impl)
       (ig/init-key key opts))))