diff --git a/systemd.spec b/systemd.spec
index 1380879..9fe19d2 100644
--- a/systemd.spec
+++ b/systemd.spec
@@ -27,7 +27,7 @@
 Name:          systemd
 Epoch:         2
 Version:       249
-Release:       1mamba
+Release:       2mamba
 Summary:       A system and service manager compatible with SysV and LSB init scripts
 Group:         System/Configuration
 Vendor:        openmamba
@@ -409,7 +409,8 @@ fi
 
 %posttrans
 if [ $1 -ge 1 ]; then
-
+# Recreate /lib/systemd as symlink if it has been deleted by a previous upgrade 
+[ -e /lib/systemd ] || ln -s ../usr/lib/systemd /lib/systemd
 [ ! -L /lib -a ! -L /lib/systemd ] && {
   # Migrate /lib/system -> /usr/lib/system
   for d in systemd; do
@@ -816,6 +817,9 @@ systemctl daemon-reload &>/dev/null || :
 %{_libdir}/pkgconfig/libudev.pc
 
 %changelog
+* Tue Aug 17 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 249-2mamba
+- recreate /lib/systemd as symlink if it has been deleted by a previous upgrade
+
 * Thu Jul 08 2021 Automatic Build System <autodist@mambasoft.it> 249-1mamba
 - automatic version update by autodist