Index: trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h
===================================================================
--- trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h	(revision 859)
+++ trunk/MagicSoft/Mars/mmontecarlo/MMcCollectionAreaCalc.h	(revision 860)
@@ -14,6 +14,6 @@
 {
 private:
-    MMcEvt  *fMcEvt;
-    MMcTrig *fMcTrig;
+    const MMcEvt  *fMcEvt;
+    const MMcTrig *fMcTrig;
 
     MHMcCollectionArea *fCollArea;