diff --git a/bt5/erp5_km/SkinTemplateItem/portal_skins/erp5_km_theme/km_css/km_listbox.css.xml b/bt5/erp5_km/SkinTemplateItem/portal_skins/erp5_km_theme/km_css/km_listbox.css.xml
index 7bf45dedceddcedad41e3796659eb204699b3707..c98dd51cc0b5cd291c1e9c41f6d93ac2a305b305 100644
--- a/bt5/erp5_km/SkinTemplateItem/portal_skins/erp5_km_theme/km_css/km_listbox.css.xml
+++ b/bt5/erp5_km/SkinTemplateItem/portal_skins/erp5_km_theme/km_css/km_listbox.css.xml
@@ -346,6 +346,7 @@ div.listbox-search-mode div.maximal-width{\n
   -moz-box-shadow:4px 4px 4px rgba(0, 0, 0, 0.5);\n
   -webkit-box-shadow:4px 4px 4px rgba(0, 0, 0, 0.5);\n
   min-height:180px;\n
+  z-index:100;\n
 }\n
 \n
 /* forum */\n
diff --git a/bt5/erp5_km/bt/revision b/bt5/erp5_km/bt/revision
index a85890daf1acc6651ae3da1add1af689c0744ef6..ec2b293ea1d90f368a14f11a2acf6d2fdefc54d1 100644
--- a/bt5/erp5_km/bt/revision
+++ b/bt5/erp5_km/bt/revision
@@ -1 +1 @@
-1829
\ No newline at end of file
+1830
\ No newline at end of file