diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/OverviewFragment.java b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/OverviewFragment.java
index 7d81f307a2..2723dd7757 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/Overview/OverviewFragment.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/Overview/OverviewFragment.java
@@ -1391,7 +1391,7 @@ public class OverviewFragment extends Fragment implements View.OnClickListener,
 
             iobGraph.getSeries().clear();
 
-            if (showIobView.isChecked()) {
+            if (showIobView.isChecked() && iobData.length > 0) {
                 addSeriesWithoutInvalidate(iobSeries, iobGraph);
             }
             if (showCobView.isChecked() && cobData.length > 0) {