diff --git a/scheme/packages.scm b/scheme/packages.scm
index ce8cbf0..74571c3 100644
--- a/scheme/packages.scm
+++ b/scheme/packages.scm
@@ -651,8 +651,8 @@
 ;; FTP server
 
 (define-structure ftpd ftpd-interface 
-  (open (modify scsh (hide char-set:whitespace)) 
-	scheme
+  (open (modify scheme (hide open-output-file))
+	(modify scsh (hide char-set:whitespace))
 	conditions handle signals
 	structure-refs
 	handle-fatal-error