diff --git a/Detectors/Passive/src/PipeRun4.cxx b/Detectors/Passive/src/PipeRun4.cxx
index 7a2ff6dcfe90b..0403624f23b4c 100644
--- a/Detectors/Passive/src/PipeRun4.cxx
+++ b/Detectors/Passive/src/PipeRun4.cxx
@@ -215,8 +215,7 @@ void PipeRun4::ConstructGeometry()
   voberylliumTube->SetLineColor(kRed);
 
   TGeoTube* berylliumTubeVacuum =
-    new TGeoTube("IP_PIPEVACUUMsh", 0., kBeryliumSectionOuterRadius - kBeryliumSectionThickness,
-                 (kBeryliumSectionZmax - kBeryliumSectionZmin) / 2);
+    new TGeoTube("IP_PIPEVACUUMsh", 0., kBeryliumSectionOuterRadius, (kBeryliumSectionZmax - kBeryliumSectionZmin) / 2);
   TGeoVolume* voberylliumTubeVacuum = new TGeoVolume("IP_PIPEMOTHER", berylliumTubeVacuum, kMedVac);
   voberylliumTubeVacuum->AddNode(voberylliumTube, 1, gGeoIdentity);
   voberylliumTubeVacuum->SetVisibility(0);