diff --git a/Generators/src/GeneratorFromFile.cxx b/Generators/src/GeneratorFromFile.cxx
index e37a3886c24e1..66f7e03a4cf15 100644
--- a/Generators/src/GeneratorFromFile.cxx
+++ b/Generators/src/GeneratorFromFile.cxx
@@ -385,6 +385,11 @@ GeneratorFromEventPool::GeneratorFromEventPool(EventPoolGenConfig const& pars) :
 
 bool GeneratorFromEventPool::Init()
 {
+  // this simply passes tracks trough. Leave units intact.
+  setTimeUnit(1.);
+  setPositionUnit(1.);
+  setEnergyUnit(1.);
+
   // initialize the event pool
   if (mConfig.rngseed > 0) {
     mRandomEngine.seed(mConfig.rngseed);
@@ -588,4 +593,4 @@ std::vector<std::string> GeneratorFromEventPool::setupFileUniverse(std::string c
 
 ClassImp(o2::eventgen::GeneratorFromEventPool);
 ClassImp(o2::eventgen::GeneratorFromFile);
-ClassImp(o2::eventgen::GeneratorFromO2Kine);
\ No newline at end of file
+ClassImp(o2::eventgen::GeneratorFromO2Kine);