diff --git a/extra/lsys/ui/ui.factor b/extra/lsys/ui/ui.factor
index 45372aec6c..c8d103a084 100644
--- a/extra/lsys/ui/ui.factor
+++ b/extra/lsys/ui/ui.factor
@@ -196,6 +196,8 @@ slate> handler> set-gadget-delegate
 
 handler> "L-system view" open-window
 
+500 sleep
+
 slate> find-gl-context
 1 glGenLists >model