diff --git a/do_preinstall.sh b/do_preinstall.sh
index dc64772241c672416f121501af236d5f2fd3417f..fe5ac1eb8a9e496122f84471610666149ca712d2 100755
--- a/do_preinstall.sh
+++ b/do_preinstall.sh
@@ -56,7 +56,7 @@ echo "Generating initial config"
 safe_run gen_config
 
 echo "Instanciating server"
-safe_run ssh partage net setlocalsid ´ldapsearch -x sambaDomainName=* | grep sambaSID | awk -F " " '{print $2}'´
+safe_run ssh partage "net setlocalsid $(ldapsearch -x sambaDomainName=* | awk '/^sambaSID/{print $2}')"
 safe_run instance
 
 echo "Running diagnostic"