diff --git a/collects/mzscheme/lang/reader.ss b/collects/mzscheme/lang/reader.ss
index 6a8e851..bc02ffa 100644
--- a/collects/mzscheme/lang/reader.ss
+++ b/collects/mzscheme/lang/reader.ss
@@ -1,2 +1,2 @@
-(module reader syntax/module-reader
-  mzscheme)
+#lang s-exp syntax/module-reader
+mzscheme