diff --git a/collects/mzlib/private/unit-compiletime.ss b/collects/mzlib/private/unit-compiletime.ss
index e5c970993c..50be3c22de 100644
--- a/collects/mzlib/private/unit-compiletime.ss
+++ b/collects/mzlib/private/unit-compiletime.ss
@@ -2,7 +2,6 @@
   (require-for-syntax syntax/struct)
   (require syntax/boundmap
            mzlib/list
-           "unit-runtime.ss"
            "unit-syntax.ss")
   (require-for-template mzscheme
                         "unit-keywords.ss"
diff --git a/collects/mzlib/unit.ss b/collects/mzlib/unit.ss
index 11ef796fb2..c38df307e8 100644
--- a/collects/mzlib/unit.ss
+++ b/collects/mzlib/unit.ss
@@ -11,8 +11,7 @@
   
   (require mzlib/etc
            "private/unit-keywords.ss"
-           "private/unit-runtime.ss"
-           (only "private/unit-compiletime.ss" apply-mac))
+           "private/unit-runtime.ss")
   
   (provide define-signature-form struct open
            define-signature provide-signature-elements