diff --git a/conf/intel/portage/package.use/00-sabayon.package.use b/conf/intel/portage/package.use/00-sabayon.package.use
index 6172d1b9..d178c1df 100644
--- a/conf/intel/portage/package.use/00-sabayon.package.use
+++ b/conf/intel/portage/package.use/00-sabayon.package.use
@@ -145,6 +145,7 @@ dev-python/imaging -tk
 dev-python/epydoc -X
 
 dev-scheme/guile regex discouraged networking
+dev-scheme/racket backtrace futures jit places threads
 
 dev-db/sqliteodbc sqlite3
 dev-db/mysql -berkdb embedded pic extraengine