Index: trunk/modules/MadGraphMatchingTreeWriter.cc
===================================================================
--- trunk/modules/MadGraphMatchingTreeWriter.cc	(revision 15)
+++ trunk/modules/MadGraphMatchingTreeWriter.cc	(revision 16)
@@ -9,4 +9,5 @@
 #include "ExRootAnalysis/ExRootCandidate.h"
 
+#include "TROOT.h"
 #include "TClonesArray.h"