diff --git a/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/OpenAPSMAPlugin.java b/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/OpenAPSMAPlugin.java
index 4e13e75d17..3bbbd05cec 100644
--- a/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/OpenAPSMAPlugin.java
+++ b/app/src/main/java/info/nightscout/androidaps/plugins/OpenAPSMA/OpenAPSMAPlugin.java
@@ -103,6 +103,7 @@ public class OpenAPSMAPlugin implements PluginBase, APSInterface {
 
     @Override
     public void invoke() {
+        lastAPSResult = null;
         DetermineBasalAdapterJS determineBasalAdapterJS = null;
         try {
             determineBasalAdapterJS = new DetermineBasalAdapterJS(new ScriptReader(MainApp.instance().getBaseContext()));