diff --git a/collects/datalog/lang/reader.rkt b/collects/datalog/lang/reader.rkt
index 1eddbdd..67a6e72 100644
--- a/collects/datalog/lang/reader.rkt
+++ b/collects/datalog/lang/reader.rkt
@@ -1,5 +1,5 @@
 (module reader syntax/module-reader
-  #:language 'datalog/lang/module
+  #:language 'datalog/lang/lang
   #:read 
   (lambda ([in (current-input-port)])
     (this-read-syntax #f in))