diff --git a/ulib/.ulib_version b/ulib/.ulib_version
index f64f5d8..9902f17 100644
--- a/ulib/.ulib_version
+++ b/ulib/.ulib_version
@@ -1 +1 @@
-27
+28
diff --git a/ulib/apache b/ulib/apache
index aea884c..3b99bb5 100644
--- a/ulib/apache
+++ b/ulib/apache
@@ -634,10 +634,26 @@ s#@@ca@@#$APACHESSLCERTSDIR/$(basename "$ca")#g
             done
         fi
         if [ -f "$confdir/sites.conf" ]; then
-            #enablesites=()
-            #disablesites=()
-            # refaire enablesites et disablesites
-            : #XXX activer les sites
+            local -a sitesconfs; local sitesconf
+            array_from_lines sitesconfs "$(<"$confdir/sites.conf" filter_conf)"
+            if [ ${#sitesconfs[*]} -gt 0 ]; then
+                # si une configuration existe, ignorer la configuration
+                # automatique
+                enablesites=()
+                disablesites=()
+                for sitesconf in "${sitesconfs[@]}"; do
+                    if [ "${sitesconf#+}" != "$sitesconf" ]; then
+                        array_del disablesites "${sitesconf#+}"
+                        array_add enablesites "${sitesconf#+}"
+                    elif [ "${sitesconf#-}" != "$sitesconf" ]; then
+                        array_del enablesites "${sitesconf#-}"
+                        array_add disablesites "${sitesconf#-}"
+                    else
+                        array_del disablesites "$sitesconf"
+                        array_add enablesites "$sitesconf"
+                    fi
+                done
+            fi
         fi
         eend
     fi
@@ -653,7 +669,7 @@ s#@@ca@@#$APACHESSLCERTSDIR/$(basename "$ca")#g
     fi
 
     if [ -n "${enablesites[*]}" -o -n "${disablesites[*]}" ]; then
-        etitle "Activation des sites"
+        etitle "(dés)Activation des sites"
         local site
         for site in "${enablesites[@]}"; do
             a2ensite "$site"