diff --git a/sources/update_synapse_for_appservice.sh b/sources/update_synapse_for_appservice.sh
index fef9ed8..50097ee 100644
--- a/sources/update_synapse_for_appservice.sh
+++ b/sources/update_synapse_for_appservice.sh
@@ -9,10 +9,11 @@ cp $service_config_file /tmp/app_service_backup.yaml
 echo "app_service_config_files:" > $service_config_file
 for f in $(ls /etc/matrix-$app/app-service/); do
     echo "  - /etc/matrix-$app/app-service/$f" >> $service_config_file
+    chmod 600 /etc/matrix-$app/app-service/$f
 done
 
 # Set permissions
-chown matrix-$app $service_config_file
+chown --reference=$service_config_file -R /etc/matrix-$app 
 chmod 600 $service_config_file
 
 systemctl restart matrix-$app
@@ -22,5 +23,5 @@ if [ $? -eq 0 ]; then
     exit 0
 else
     echo "Failed to restart synapse with the new config file. Restore the old config file !!"
-    cp /tmp/app_service_backup.yaml $service_config_file
+    mv /tmp/app_service_backup.yaml $service_config_file
 fi