diff --git a/tools-musl/run.sh b/tools-musl/run.sh
index caf9491c..83a8103c 100755
--- a/tools-musl/run.sh
+++ b/tools-musl/run.sh
@@ -53,6 +53,7 @@ prepare_overlay() {
 
 emerge_system() {
 	ROOT="${ROOTFS}" emerge --keep-going --with-bdeps=y -uvq @system 
+	ROOT="${ROOTFS}" emerge --keep-going --with-bdeps=y -uvq sandbox
 }
 
 mk_top_level_dirs() {