diff --git a/scheme/xlib/xlib-packages.scm b/scheme/xlib/xlib-packages.scm
index 074af42..9324936 100644
--- a/scheme/xlib/xlib-packages.scm
+++ b/scheme/xlib/xlib-packages.scm
@@ -10,9 +10,11 @@
 	signals ;; for error	
 	external-calls
 	receiving
+	list-lib ;; for iota
 	xlib-internal-types
 	xlib-helper
 	xlib-graphics ;; for clear-window
+	xlib-display ;; for root-window, screen-count
 	finite-types ;; for define-enumerated-type
 	)
   (files window))