diff --git a/Modules/ROI/src/mitkROIMapper3D.cpp b/Modules/ROI/src/mitkROIMapper3D.cpp
index 3c2a1beb59..73afe959c7 100644
--- a/Modules/ROI/src/mitkROIMapper3D.cpp
+++ b/Modules/ROI/src/mitkROIMapper3D.cpp
@@ -1,153 +1,157 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #include <mitkROIMapper3D.h>
 #include <mitkROI.h>
 
 #include <vtkActor.h>
 #include <vtkCubeSource.h>
 #include <vtkPolyDataMapper.h>
 #include <vtkSmartPointer.h>
 
 namespace
 {
   void ApplyIndividualColorAndOpacityProperties(const mitk::IPropertyProvider* properties, vtkActor* actor)
   {
     auto property = properties->GetConstProperty("color");
 
     if (property.IsNotNull())
     {
       auto colorProperty = dynamic_cast<const mitk::ColorProperty*>(property.GetPointer());
 
       if (colorProperty != nullptr)
       {
         const auto color = colorProperty->GetColor();
         actor->GetProperty()->SetColor(color[0], color[1], color[2]);
       }
     }
 
     property = properties->GetConstProperty("opacity");
 
     if (property.IsNotNull())
     {
       auto opacityProperty = dynamic_cast<const mitk::FloatProperty*>(property.GetPointer());
 
       if (opacityProperty != nullptr)
       {
         const auto opacity = opacityProperty->GetValue();
         actor->GetProperty()->SetOpacity(actor->GetProperty()->GetOpacity() * opacity);
       }
     }
   }
 }
 
 mitk::ROIMapper3D::LocalStorage::LocalStorage()
   : m_PropAssembly(vtkSmartPointer<vtkPropAssembly>::New())
 {
 }
 
 mitk::ROIMapper3D::LocalStorage::~LocalStorage()
 {
 }
 
 vtkPropAssembly* mitk::ROIMapper3D::LocalStorage::GetPropAssembly() const
 {
   return m_PropAssembly;
 }
 
 void mitk::ROIMapper3D::LocalStorage::SetPropAssembly(vtkPropAssembly* propAssembly)
 {
   m_PropAssembly = propAssembly;
 }
 
 void mitk::ROIMapper3D::SetDefaultProperties(DataNode* node, BaseRenderer* renderer, bool override)
 {
   Superclass::SetDefaultProperties(node, renderer, override);
   node->AddProperty("opacity", mitk::FloatProperty::New(1.0f), renderer, override);
 }
 
 mitk::ROIMapper3D::ROIMapper3D()
 {
 }
 
 mitk::ROIMapper3D::~ROIMapper3D()
 {
 }
 
 void mitk::ROIMapper3D::GenerateDataForRenderer(BaseRenderer* renderer)
 {
   const auto* dataNode = this->GetDataNode();
 
   if (dataNode == nullptr)
     return;
 
   auto* localStorage = m_LocalStorageHandler.GetLocalStorage(renderer);
 
   if (localStorage->GetLastGenerateDataTime() >= dataNode->GetMTime())
     return;
 
   const auto* data = dynamic_cast<ROI*>(this->GetData());
 
   if (data == nullptr)
     return;
 
   const auto* geometry = data->GetGeometry();
+  const auto halfSpacing = geometry->GetSpacing() * 0.5f;
+
   auto propAssembly = vtkSmartPointer<vtkPropAssembly>::New();
 
   if (dataNode->IsVisible(renderer))
   {
     for (const auto& roi : *data)
     {
       Point3D min;
       geometry->IndexToWorld(roi.Min, min);
+      min -= halfSpacing;
 
       Point3D max;
       geometry->IndexToWorld(roi.Max, max);
+      max += halfSpacing;
 
       auto cube = vtkSmartPointer<vtkCubeSource>::New();
       cube->SetBounds(min[0], max[0], min[1], max[1], min[2], max[2]);
       cube->Update();
 
       auto mapper = vtkSmartPointer<vtkPolyDataMapper>::New();
       mapper->SetInputConnection(cube->GetOutputPort());
 
       auto actor = vtkSmartPointer<vtkActor>::New();
       actor->SetMapper(mapper);
 
       this->ApplyColorAndOpacityProperties(renderer, actor);
       ApplyIndividualColorAndOpacityProperties(roi.Properties, actor);
 
       auto* property = actor->GetProperty();
       property->SetRepresentationToWireframe();
       property->LightingOff();
 
       propAssembly->AddPart(actor);
     }
   }
 
   localStorage->SetPropAssembly(propAssembly);
   localStorage->UpdateGenerateDataTime();
 }
 
 void mitk::ROIMapper3D::ApplyColorAndOpacityProperties(BaseRenderer* renderer, vtkActor* actor)
 {
   auto* property = actor->GetProperty();
 
   float opacity = 1.0f;
   this->GetOpacity(opacity, renderer);
   property->SetOpacity(opacity);
 }
 
 vtkProp* mitk::ROIMapper3D::GetVtkProp(BaseRenderer* renderer)
 {
   return m_LocalStorageHandler.GetLocalStorage(renderer)->GetPropAssembly();
 }