diff --git a/Pr/PrKernel/include/PrKernel/UTGeomCache.h b/Pr/PrKernel/include/PrKernel/UTGeomCache.h
index c85cded9f456f0dc4aa1364ed5b72dddb0f54616..c81834f8c1075421d327e1e58a05b8fcd6cff5a6 100644
--- a/Pr/PrKernel/include/PrKernel/UTGeomCache.h
+++ b/Pr/PrKernel/include/PrKernel/UTGeomCache.h
@@ -38,21 +38,21 @@ namespace LHCb::Pr::UT {
     UTGeomCache( const DeUTDetector& utDet, const IUTReadoutTool& ro, const IUTReadoutTool::ReadoutInfo& roInfo ) {
       sectors.fill( nullptr );
       for ( unsigned int srcId = 0; srcId < ro.nBoard( &roInfo ); srcId++ ) {
-        for ( const auto& [idx, sector] :
+        for ( const auto& [idx, subsector] :
               range::enumerate( ro.findBySourceID( srcId, &roInfo ),
                                 ro.TELLNumberToSourceID( srcId + 1, &roInfo ) *
                                     static_cast<unsigned>( UTInfo::SectorNumbers::MaxSectorsPerBoard ) ) ) {
           assert( idx < UTInfo::MaxSectorsAllBoards );
 #ifdef USE_DD4HEP
           if ( sectors[idx].isValid() ) throw std::runtime_error( "UTGeomCache: duplicate sector???" );
-          sectors[idx] = utDet.getSector( sector );
+          sectors[idx] = utDet.getSector( subsector );
 #else
           if ( sectors[idx] ) throw std::runtime_error( "UTGeomCache: duplicate sector???" );
-          sectors[idx] = &utDet.getSector( sector );
+          sectors[idx] = &utDet.getSector( subsector );
 #endif
-          fullchan[idx] = {LHCb::UTDAQ::sectorFullID( sector.side(), sector.layer(), sector.stave(), sector.face(),
-                                                      sector.module(), sector.sector() ),
-                           sector.channelID()};
+          fullchan[idx] = {LHCb::UTDAQ::sectorFullID( subsector.side(), subsector.layer(), subsector.stave(),
+                                                      subsector.face(), subsector.module(), subsector.sector() ),
+                           subsector.getFullSector()};
         }
       }
     }