diff --git a/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp b/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
index fa8985b5ae22311c821439a75aad46e3b6f62dfa..796c052ee2ff50bf839d60c50a5b3f3e691cd627 100644
--- a/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
+++ b/apps/gpu/LBM/DrivenCavity/DrivenCavity.cpp
@@ -115,8 +115,6 @@ int main()
 
         gridBuilder->addCoarseGrid(-0.5 * L, -0.5 * L, -0.5 * L, 0.5 * L, 0.5 * L, 0.5 * L, dx);
 
-        gridBuilder->addGrid(new Cuboid(-0.25, -0.25, -0.25, 0.25, 0.25, 0.25), 1); // add fine grid
-
         gridBuilder->setPeriodicBoundaryCondition(false, false, false);
 
         gridBuilder->buildGrids(LbmOrGks::LBM, false);