diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/ChartFiller.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/ChartFiller.java
index 6b2dcd445..8633b0eae 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/ChartFiller.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/chart/ChartFiller.java
@@ -153,16 +153,17 @@ public abstract class ChartFiller implements IChartFiller {
         return sum;
     }
 
-    protected static EffortDuration sumDurationsForDay(
+    protected static EffortDuration sumAvailabilitiesForDay(
             Collection<? extends Resource> resources, LocalDate day) {
         EffortDuration sum = zero();
         for (Resource resource : resources) {
-            sum = sum.plus(durationFor(resource, day));
+            sum = sum.plus(availabilityFor(resource, day));
         }
         return sum;
     }
 
-    private static EffortDuration durationFor(Resource resource, LocalDate day) {
+    private static EffortDuration availabilityFor(Resource resource,
+            LocalDate day) {
         return resource.getCalendarOrDefault().getCapacityDurationAt(day);
     }
 
diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
index af8a5b820..daee88f66 100644
--- a/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/planner/company/CompanyPlanningModel.java
@@ -953,7 +953,7 @@ public abstract class CompanyPlanningModel implements ICompanyPlanningModel {
                         Entry<LocalDate, List<Resource>> element) {
                     LocalDate day = element.getKey();
                     List<Resource> resources = element.getValue();
-                    return sumDurationsForDay(resources, day);
+                    return sumAvailabilitiesForDay(resources, day);
                 }
 
             }.calculate(getResourcesByDateBetween(resources, start, finish));