diff --git a/GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh b/GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh
index 5fdd706b91236..03dcaf958720e 100755
--- a/GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh
+++ b/GeneratorInterface/LHEInterface/data/run_generic_tarball_cvmfs.sh
@@ -23,6 +23,8 @@ echo "%MSG-MG5 number of events requested = $nevt"
 rnum=${3}
 echo "%MSG-MG5 random seed used for the run = $rnum"
 
+echo "%MSG-MG5 residual arguments = ${@:4}"
+
 LHEWORKDIR=`pwd`
 
 if [[ -d lheevent ]]
@@ -37,7 +39,7 @@ mkdir lheevent; cd lheevent
 tar -xaf ${path} 
 
 #generate events (call for 1 core always for now until hooks to set number of cores are implemented upstream)
-./runcmsgrid.sh $nevt $rnum 1
+./runcmsgrid.sh $nevt $rnum 1 ${@:4}
 
 mv cmsgrid_final.lhe $LHEWORKDIR/
 
diff --git a/GeneratorInterface/LHEInterface/plugins/ExternalLHEProducer.cc b/GeneratorInterface/LHEInterface/plugins/ExternalLHEProducer.cc
index 5e3c410442c58..06cd55806f5e9 100644
--- a/GeneratorInterface/LHEInterface/plugins/ExternalLHEProducer.cc
+++ b/GeneratorInterface/LHEInterface/plugins/ExternalLHEProducer.cc
@@ -215,7 +215,8 @@ ExternalLHEProducer::beginRunProduce(edm::Run& run, edm::EventSetup const& es)
   
   std::ostringstream eventStream;
   eventStream << nEvents_;
-  args_.push_back(eventStream.str());
+  // args_.push_back(eventStream.str());
+  args_.insert(args_.begin() + 1, eventStream.str());
 
   // pass the random number generator seed as last argument
 
@@ -229,7 +230,8 @@ ExternalLHEProducer::beginRunProduce(edm::Run& run, edm::EventSetup const& es)
   }
   std::ostringstream randomStream;
   randomStream << rng->mySeed(); 
-  args_.push_back(randomStream.str());
+  // args_.push_back(randomStream.str());
+  args_.insert(args_.begin() + 2, randomStream.str());
 
   for ( unsigned int iArg = 0; iArg < args_.size() ; iArg++ ) {
     LogDebug("LHEInputArgs") << "arg [" << iArg << "] = " << args_[iArg];