diff --git a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractWeekChartFragment.java b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractWeekChartFragment.java
index 7f68fc51d..0b958f6f4 100644
--- a/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractWeekChartFragment.java
+++ b/app/src/main/java/nodomain/freeyourgadget/gadgetbridge/activities/charts/AbstractWeekChartFragment.java
@@ -126,7 +126,7 @@ public abstract class AbstractWeekChartFragment extends AbstractChartFragment {
 
         long balance = 0;
         long daily_balance=0;
-
+        TOTAL_DAYS_FOR_AVERAGE=0;
 
         for (int counter = 0; counter < TOTAL_DAYS; counter++) {
             ActivityAmounts amounts = getActivityAmountsForDay(db, day, device);