Index: trunk/MagicSoft/Mars/mcalib/MCalibrationQECam.cc
===================================================================
--- trunk/MagicSoft/Mars/mcalib/MCalibrationQECam.cc	(revision 4203)
+++ trunk/MagicSoft/Mars/mcalib/MCalibrationQECam.cc	(revision 4204)
@@ -239,8 +239,10 @@
     case 0:
       if (!pix.IsAverageQEFFactorAvailable())
+        return kFALSE;
       val = pix.GetQECascadesFFactor();
       break;
     case 1:
       if (!pix.IsAverageQEFFactorAvailable())
+        return kFALSE;
       val = pix.GetQECascadesFFactorErr();
       break;