diff --git a/GUI/View/Realspace/RealspaceBuilder.cpp b/GUI/View/Realspace/RealspaceBuilder.cpp
index d575e5af57f45e0da86f4a8c9c1b05ff6c216de6..267770e628b2614b2b2944b0dcdedefe111f3a8f 100644
--- a/GUI/View/Realspace/RealspaceBuilder.cpp
+++ b/GUI/View/Realspace/RealspaceBuilder.cpp
@@ -43,7 +43,6 @@ using Img3D::Model;
 using Img3D::Particle3DContainer;
 
 namespace {
-using double2d_t = RealspaceBuilder::double2d_t;
 
 double2d_t generatePositions(IInterference* const iff, double layerSize, double density)
 {
diff --git a/GUI/View/Realspace/RealspaceBuilder.h b/GUI/View/Realspace/RealspaceBuilder.h
index aaccbea06b3289443f8b374dcdd0cb5fec372649..45ae620b6ae4bb1482f4067cdce45b767c87ac99 100644
--- a/GUI/View/Realspace/RealspaceBuilder.h
+++ b/GUI/View/Realspace/RealspaceBuilder.h
@@ -15,6 +15,7 @@
 #ifndef BORNAGAIN_GUI_VIEW_REALSPACE_REALSPACEBUILDER_H
 #define BORNAGAIN_GUI_VIEW_REALSPACE_REALSPACEBUILDER_H
 
+#include "Base/Type/Field2D.h"
 #include "Img3D/View/Camera.h"
 
 class Item3D;
@@ -32,8 +33,6 @@ class Particle3DContainer;
 
 class RealspaceBuilder {
 public:
-    using double2d_t = std::vector<std::vector<double>>;
-
     RealspaceBuilder(std::function<QColor(const QString&)> fnColorFromMaterialName);
     ~RealspaceBuilder();