diff --git a/debian/ahenk.postinst b/debian/ahenk.postinst
index b7b9a48..9b7f06a 100644
--- a/debian/ahenk.postinst
+++ b/debian/ahenk.postinst
@@ -5,15 +5,21 @@ set -e
 #mkdir -p /usr/share/ahenk/plugins
 
 # update ahenk from 1.0.0-6 to 1.0.0-7
-if [[ ! -d /etc/ahenk ]]; then
+if [ ! -d /etc/ahenk ]; then
+
     mkdir -p /etc/ahenk
     cp -rf /tmp/ahenk/* /etc/ahenk
+
+fi
+
 # update pardus21 sssd conf changes when update pardus from 24 to 25
-    if [[ -f /etc/ahenk/ad_info ]]; then
-          if [[ -f /etc/sssd/sssd.conf ]]; then
-            sed -i 's/ad_domain/ad_server/g' /etc/sssd/sssd.conf
-          fi
+if [ -f /etc/ahenk/ad_info ]; then
+
+    if [ -f /etc/sssd/sssd.conf ]; then
+       sed -i 's/ad_domain/ad_server/g' /etc/sssd/sssd.conf
+       systemctl restart sssd.service
     fi
+
 fi
 
 systemctl enable ahenk