Index: /trunk/FACT++/src/ratescan.cc
===================================================================
--- /trunk/FACT++/src/ratescan.cc	(revision 12503)
+++ /trunk/FACT++/src/ratescan.cc	(revision 12504)
@@ -168,4 +168,11 @@
 
                 fOnTime = 0;
+                return;
+            }
+
+            if (sdata.fTriggerRate==0)
+            {
+                Message("Rate scan stopped due zero trigger rate.");
+                fCounter = -1;
                 return;
             }