Index: trunk/Mars/mjtrain/Makefile
===================================================================
--- trunk/Mars/mjtrain/Makefile	(revision 9627)
+++ trunk/Mars/mjtrain/Makefile	(revision 9846)
@@ -27,4 +27,5 @@
 	   MJTrainEnergy.cc \
            MJTrainDisp.cc \
+           MJTrainImpact.cc \
            MJTrainSeparation.cc