diff --git a/src/fr/devinsy/statoolinfos/htmlize/ChartHtmlizer.java b/src/fr/devinsy/statoolinfos/htmlize/ChartHtmlizer.java
index 2820a80..d4d58bd 100644
--- a/src/fr/devinsy/statoolinfos/htmlize/ChartHtmlizer.java
+++ b/src/fr/devinsy/statoolinfos/htmlize/ChartHtmlizer.java
@@ -748,7 +748,7 @@ public class ChartHtmlizer
         {
             for (YearWeek timestamp = startTarget; !timestamp.isAfter(endTarget); timestamp = timestamp.plusWeeks(1))
             {
-                LocalDate date = timestamp.atDay(DayOfWeek.MONDAY).plusWeeks(1);
+                LocalDate date = timestamp.atDay(DayOfWeek.MONDAY).plusDays(6);
                 String timestampLabel = date.format(DateTimeFormatter.ofPattern("yyyy-MMM-dd", Locale.FRANCE));
                 chart.getLabels().add(timestampLabel);