Index: trunk/MagicSoft/Mars/mbase/MFilter.h
===================================================================
--- trunk/MagicSoft/Mars/mbase/MFilter.h	(revision 1938)
+++ trunk/MagicSoft/Mars/mbase/MFilter.h	(revision 1948)
@@ -25,5 +25,5 @@
     Bool_t IsInverted() const  { return fInverted; }
 
-    ClassDef(MFilter, 0)		// Abstract base class for the filters
+    ClassDef(MFilter, 1)		// Abstract base class for the filters
 };