diff --git a/GeneratorInterface/CepGenInterface/interface/CepGenEventGenerator.h b/GeneratorInterface/CepGenInterface/interface/CepGenEventGenerator.h
index 6ef187abc9602..42a796e8376b6 100644
--- a/GeneratorInterface/CepGenInterface/interface/CepGenEventGenerator.h
+++ b/GeneratorInterface/CepGenInterface/interface/CepGenEventGenerator.h
@@ -8,6 +8,7 @@
 #include "FWCore/ParameterSet/interface/ParameterSet.h"
 #include "GeneratorInterface/Core/interface/BaseHadronizer.h"
 
+#include <CepGen/Core/ParametersList.h>
 #include <CepGen/Generator.h>
 
 namespace gen {