diff --git a/plugins/EnergyScan.java b/plugins/EnergyScan.java
index 055d992..eeb2311 100644
--- a/plugins/EnergyScan.java
+++ b/plugins/EnergyScan.java
@@ -85,6 +85,10 @@ public class EnergyScan extends Panel {
         getComponent().setEnabled(state == State.Ready);
     }
     
+    void stopScan() throws Exception{
+        evalAsync("caput('START', 'STOP')");
+    }
+    
     @Override
     protected void onExecutedFile(String fileName, Object result){
         try {
@@ -93,7 +97,7 @@ public class EnergyScan extends Panel {
                     if (result instanceof Exception ){
                         batchIndex=0;
                         batch=null;
-                        evalAsync("caput('START', 'STOP')");
+                        stopScan();
                         throw ((Exception)result);
                     }
                     if (batch!=null){