diff --git a/collects/frtime/lang-core.rkt b/collects/frtime/lang-core.rkt
index 8bfb8086f3..5727a04c41 100644
--- a/collects/frtime/lang-core.rkt
+++ b/collects/frtime/lang-core.rkt
@@ -1,5 +1,5 @@
 (module lang-core mzscheme
-  (require-for-syntax frtime/struct mzlib/list)
+  (require-for-syntax syntax/struct mzlib/list)
   (require mzlib/list
            frtime/core/frp
            (only srfi/43/vector-lib vector-any)