diff --git a/collects/tests/macro-debugger/gui-tests.rkt b/collects/tests/macro-debugger/gui-tests.rkt
index f3ba1f9..3dcd3dc 100644
--- a/collects/tests/macro-debugger/gui-tests.rkt
+++ b/collects/tests/macro-debugger/gui-tests.rkt
@@ -1,7 +1,7 @@
 #lang scheme/base
 (require scheme/class
          scheme/list
-         scheme/gui
+         scheme/gui/base
          framework/framework
          mzlib/etc)