diff --git a/cros.sh b/cros.sh
index 2350e3a..5a55a9a 100755
--- a/cros.sh
+++ b/cros.sh
@@ -68,6 +68,8 @@ for repo in $($MANIFEST_XML_REPOLIST $MANIFEST_DIR/default.xml cros chromium); d
     fi
 done
 
+wait # wait for all background jobs
+
 if [[ -z ${DRY_RUN:-} && "$USE_BITMAP_INDEX" == "1" ]]; then
     git_repack
 fi