diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/IobTotal.java b/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/IobTotal.java
index b40c2db602..edd6504219 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/IobTotal.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/IobTotal.java
@@ -43,7 +43,7 @@ public class IobTotal {
     public static IobTotal combine(IobTotal bolusIOB, IobTotal basalIob) {
         IobTotal result = new IobTotal();
         result.iob = bolusIOB.iob + basalIob.basaliob;
-        result.activity = bolusIOB.activity;
+        result.activity = bolusIOB.activity + basalIob.activity;
         result.bolussnooze = bolusIOB.bolussnooze;
         result.basaliob = basalIob.basaliob;
         result.netbasalinsulin = basalIob.netbasalinsulin;