Index: trunk/MagicSoft/Mars/mimage/MHNewImagePar.cc
===================================================================
--- trunk/MagicSoft/Mars/mimage/MHNewImagePar.cc	(revision 2117)
+++ trunk/MagicSoft/Mars/mimage/MHNewImagePar.cc	(revision 2142)
@@ -144,4 +144,10 @@
 Bool_t MHNewImagePar::Fill(const MParContainer *par, const Stat_t w)
 {
+    if (!par)
+    {
+        *fLog << err << "MHNewImagePar::Fill: Pointer (!=NULL) expected." << endl;
+        return kFALSE;
+    }
+
     const MNewImagePar &h = *(MNewImagePar*)par;