diff --git a/navalplanner-webapp/src/main/webapp/planner/css/ganttzk.css b/navalplanner-webapp/src/main/webapp/planner/css/ganttzk.css
index 2336722ec..2cf91f3fc 100644
--- a/navalplanner-webapp/src/main/webapp/planner/css/ganttzk.css
+++ b/navalplanner-webapp/src/main/webapp/planner/css/ganttzk.css
@@ -432,7 +432,7 @@ div.box.limiting-unassigned {
 }
 
 #watermark .week-level {
-    background-image: url("../../zkau/web/ganttz/img/bank-holiday-shade.png"), url("../../zkau/web/ganttz/img/bank-holiday-shade.png"), url("../../zkau/web/ganttz/img/bank-holiday-shade.png"),url("../../zkau/web/ganttz/img/bank-holiday-shade.png"),url("../../zkau/web/ganttz/img/bank-holiday-shade.png"),url("../../zkau/web/ganttz/img/bank-holiday-shade.png"),url("../../zkau/web/ganttz/img/bank-holiday-shade.png");
+    background-image: url("../../zkau/web/ganttz/img/not-workable-shade.png"), url("../../zkau/web/ganttz/img/not-workable-shade.png"), url("../../zkau/web/ganttz/img/not-workable-shade.png"),url("../../zkau/web/ganttz/img/not-workable-shade.png"),url("../../zkau/web/ganttz/img/not-workable-shade.png"),url("../../zkau/web/ganttz/img/not-workable-shade.png"),url("../../zkau/web/ganttz/img/not-workable-shade.png");
     background-repeat: repeat-y, repeat-y,repeat-y,repeat-y,repeat-y,repeat-y,repeat-y;
     background-position: -8px 0, -8px 0, -8px 0, -8px 0, -8px 0, -8px 0, -8px 0;
 }