diff --git a/collects/macro-debugger/model/deriv-util.ss b/collects/macro-debugger/model/deriv-util.ss
index ee8afd2..0a3c2a3 100644
--- a/collects/macro-debugger/model/deriv-util.ss
+++ b/collects/macro-debugger/model/deriv-util.ss
@@ -1,7 +1,7 @@
 
 #lang scheme/base
 (require (for-syntax scheme/base)
-         (for-syntax scheme/private/struct-info)
+         (for-syntax racket/private/struct-info)
          scheme/list
          scheme/match
          unstable/struct