diff --git a/bootstrap.sh b/bootstrap.sh
index 0e0ac56fc4..d199a73226 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -457,6 +457,7 @@ bootstrap_libs() {
       ((libbootstrap ${i} ; bootstrap_libs_post ${i}) &)
     fi
   done
+  ${BGJOB} && wait
 }
 
 run() {