Index: fact/tools/marsmacros/mc2csv/MonteCarlo.h
===================================================================
--- fact/tools/marsmacros/mc2csv/MonteCarlo.h	(revision 14728)
+++ fact/tools/marsmacros/mc2csv/MonteCarlo.h	(revision 14729)
@@ -189,5 +189,5 @@
     /*! Open the mars-root-file produced with ceres
      */
-    void OpenRootFile();
+    int  OpenRootFile();
 
     /*!  Close the mars-root-file produced with ceres