diff --git a/DDG4/src/Geant4ShapeConverter.cpp b/DDG4/src/Geant4ShapeConverter.cpp
index 5a5d4830f2fbd5416eceb63e7a46f5190b1263ba..8cab4d9360e0e44266351277460008cedd29e304 100644
--- a/DDG4/src/Geant4ShapeConverter.cpp
+++ b/DDG4/src/Geant4ShapeConverter.cpp
@@ -274,6 +274,7 @@ namespace dd4hep {
         }
         g4->AddFacet(g4f);
       }
+      g4->SetSolidClosed(sh->IsClosedBody());
       return g4;
     }