diff --git a/graphics/VP1/VP1Systems/VP1GeometrySystems/src/VP1GeometrySystem.cxx b/graphics/VP1/VP1Systems/VP1GeometrySystems/src/VP1GeometrySystem.cxx
index cefb503f1425d377afe9d80c257c602442b6defd..8a4f3ab55c9c0221500117a1549d7f1cfe14ec4c 100644
--- a/graphics/VP1/VP1Systems/VP1GeometrySystems/src/VP1GeometrySystem.cxx
+++ b/graphics/VP1/VP1Systems/VP1GeometrySystems/src/VP1GeometrySystem.cxx
@@ -392,7 +392,7 @@ QWidget * VP1GeometrySystem::buildController()
   d->addSubSystem( VP1GeoFlags::CavernInfra,"CavernInfra");
   d->addSubSystem( VP1GeoFlags::BeamPipe,"BeamPipe");
   d->addSubSystem( VP1GeoFlags::LUCID,".*Lucid.*");
-  d->addSubSystem( VP1GeoFlags::ZDC,".*Zdc.*");
+  d->addSubSystem( VP1GeoFlags::ZDC,".*ZDC.*");
   d->addSubSystem( VP1GeoFlags::ALFA,".*ALFA.*");
   d->addSubSystem( VP1GeoFlags::ForwardRegion,".*ForwardRegion.*");