diff --git a/debian/ldapsaisie.postinst b/debian/ldapsaisie.postinst
index b71747b4..49c0efcb 100644
--- a/debian/ldapsaisie.postinst
+++ b/debian/ldapsaisie.postinst
@@ -2,3 +2,14 @@
 
 chown www-data:adm /var/tmp/ldapsaisie /var/log/ldapsaisie
 chmod 750 /var/tmp/ldapsaisie /var/log/ldapsaisie
+if test ! -L /etc/ldapsaisie/local
+then
+	echo "Install /etc/ldapsaisie/local symbolic link"
+	[ -e /etc/ldapsaisie/local ] && mv -f /etc/ldapsaisie/local /etc/ldapsaisie/local.dpkg-old
+	ln -s /usr/local/share/ldapsaisie /etc/ldapsaisie/local
+fi
+
+if [ -f /usr/local/share/ldapsaisie/conf/config.inc.php.dpkg-move ]
+then
+	mv /usr/local/share/ldapsaisie/conf/config.inc.php.dpkg-move /usr/local/share/ldapsaisie/conf/config.inc.php
+fi
diff --git a/debian/ldapsaisie.preinst b/debian/ldapsaisie.preinst
new file mode 100644
index 00000000..dffee564
--- /dev/null
+++ b/debian/ldapsaisie.preinst
@@ -0,0 +1,8 @@
+#!/bin/sh
+
+if test ! -L /etc/ldapsaisie/local
+then
+	echo "Move /etc/ldapsaisie/local in /usr/local/share/ldapsaisie"
+	mv /etc/ldapsaisie/local /usr/local/share/ldapsaisie
+	mv /usr/local/share/ldapsaisie/conf/config.inc.php /usr/local/share/ldapsaisie/conf/config.inc.php.dpkg-move
+fi
diff --git a/debian/rules b/debian/rules
index f6932768..1d18daf3 100755
--- a/debian/rules
+++ b/debian/rules
@@ -29,7 +29,6 @@ install: build
 	find $(CURDIR)/debian/ldapsaisie/usr/share/ldapsaisie -name .placefolder -exec rm -f {} \;
 
 	mv $(CURDIR)/debian/ldapsaisie/usr/share/ldapsaisie/local $(CURDIR)/debian/ldapsaisie/usr/local/share/ldapsaisie
-	dh_link /usr/local/share/ldapsaisie /etc/ldapsaisie/local
 	find $(CURDIR)/debian/ldapsaisie/usr/local/share/ldapsaisie -type f -exec rm -f \{\} \;
 	dh_link /usr/local/share/ldapsaisie /usr/share/ldapsaisie/local
 	mv $(CURDIR)/debian/ldapsaisie/usr/share/ldapsaisie/conf/config.inc.php $(CURDIR)/debian/ldapsaisie/usr/local/share/ldapsaisie/conf/