             pad: 1.05,
             tickOptions: {formatString: '%d h'}
           }
-        }
+        },
+        highlighter: defaultHighlighterOptions
       }
 
   if $('#hour_distribution').size() > 0

            tickOptions: {formatString: '%d p/h'},
            min: 0,
            tickInterval: 1

          }
        }
      }

  if $('#tickets_per_project').size() > 0

            pad: 1.05,
            tickOptions: {formatString: '%d p'}
          }
        },
        highlighter: defaultHighlighterOptions
      }

  if $('#points_distribution').size() > 0
