diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/StandardLoadChartFiller.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/StandardLoadChartFiller.java
index 0e2edea0d..6d4763230 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/StandardLoadChartFiller.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/StandardLoadChartFiller.java
@@ -67,7 +67,7 @@ public abstract class StandardLoadChartFiller extends LoadChartFiller {
 
     private SortedMap<LocalDate, EffortDuration> getCalendarMaximumAvailability(
             ILoadChartData data) {
-        return data.getAvailability();
+        return groupAsNeededByZoom(data.getAvailability());
     }
 
 }