Index: trunk/MagicSoft/Mars/mhist/MHCamEvent.cc
===================================================================
--- trunk/MagicSoft/Mars/mhist/MHCamEvent.cc	(revision 9385)
+++ trunk/MagicSoft/Mars/mhist/MHCamEvent.cc	(revision 9518)
@@ -407,3 +407,5 @@
     if (obj==fErr)
         fErr = 0;
-}
+    if (obj==fSum)
+        fSum = 0;
+}