diff --git a/android_app/app/src/main/java/com/health/openscale/gui/GraphFragment.java b/android_app/app/src/main/java/com/health/openscale/gui/GraphFragment.java
index bd346a0e..64773647 100644
--- a/android_app/app/src/main/java/com/health/openscale/gui/GraphFragment.java
+++ b/android_app/app/src/main/java/com/health/openscale/gui/GraphFragment.java
@@ -97,6 +97,7 @@ public class GraphFragment extends Fragment implements FragmentUpdateListener {
             public void onClick(View view) {
                 calYears.roll(Calendar.YEAR, false);
                 txtYear.setText(Integer.toString(calYears.get(Calendar.YEAR)));
+                valueLastSelected = null;
                 updateOnView(null);
             }
         });
@@ -105,6 +106,7 @@ public class GraphFragment extends Fragment implements FragmentUpdateListener {
             public void onClick(View view) {
                 calYears.roll(Calendar.YEAR, true);
                 txtYear.setText(Integer.toString(calYears.get(Calendar.YEAR)));
+                valueLastSelected = null;
                 updateOnView(null);
             }
         });