Index: /trunk/Mars/msimreflector/MSimRays.cc
===================================================================
--- /trunk/Mars/msimreflector/MSimRays.cc	(revision 9909)
+++ /trunk/Mars/msimreflector/MSimRays.cc	(revision 9910)
@@ -221,5 +221,5 @@
     {
         rc = kTRUE;
-        fNumPhotons = GetEnvValue(env, prefix, "NumPhotons", fNumPhotons);
+        fNumPhotons = GetEnvValue(env, prefix, "NumPhotons", (Int_t)fNumPhotons);
     }