diff --git a/DDG4/include/DDG4/DDG4Dict.h b/DDG4/include/DDG4/DDG4Dict.h
index 42054e4694032f6d2b69af19e7dd223ab70ff391..68f15ef1a9988f1d1f9168ae746f64d01e5f81ef 100644
--- a/DDG4/include/DDG4/DDG4Dict.h
+++ b/DDG4/include/DDG4/DDG4Dict.h
@@ -85,6 +85,7 @@ namespace { class DDG4Dict {};   }
 
 /// Dictionaires for basic Hit data structures
 #pragma link C++ class dd4hep::sim::Geant4HitData+;
+
 namespace dd4hep { namespace sim { typedef Geant4HitData* Geant4HitData_ptr_t; }}
 #pragma link C++ typedef Geant4HitData_ptr_t;
 #pragma link C++ class std::vector<dd4hep::sim::Geant4HitData_ptr_t>+;