diff --git a/MC/CustomGenerators/PWGGA/PythiaEtaPrime.C b/MC/CustomGenerators/PWGGA/PythiaEtaPrime.C
new file mode 100644
index 00000000..fd112174
--- /dev/null
+++ b/MC/CustomGenerators/PWGGA/PythiaEtaPrime.C
@@ -0,0 +1,11 @@
+AliGenerator* GeneratorCustom(TString opt = ""){
+    
+    // Pythia
+    AliGenPythiaPlus *pythia = (AliGenPythiaPlus*)GeneratorPythia6(kPythia6Tune_Perugia2011,331,1.2);
+    
+    // settings
+    pythia->SetForceDecay(kEtaPrime);
+    
+    return pythia;
+    
+}