diff --git a/GUI/Views/RealSpaceWidgets/IPositionBuilder.cpp b/GUI/Views/RealSpaceWidgets/IPositionBuilder.cpp
index 307b6c6a67aece0211252064760fb0de19ae91a3..cd9be3ee17a714001793f85f146b331ae04a2ba7 100644
--- a/GUI/Views/RealSpaceWidgets/IPositionBuilder.cpp
+++ b/GUI/Views/RealSpaceWidgets/IPositionBuilder.cpp
@@ -165,7 +165,7 @@ ParaCrystal2DPositionBuilder::~ParaCrystal2DPositionBuilder() = default;
 std::vector<std::vector<double>>
 ParaCrystal2DPositionBuilder::generatePositionsImpl(double layer_size, double) const
 {
-    return RealSpace2DParacrystalUtils::Compute2DParacrystalLatticePositions(m_iff.get(),
+    return RealSpace::Paracrystal2D::Compute2DParacrystalLatticePositions(m_iff.get(),
                                                                              layer_size);
 }
 
diff --git a/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.cpp b/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.cpp
index c5726b89f5aefa84ba3427bab9a6aa7f63b2606e..95afa55fb9dbfe9989e48ccd88f0cdabfb34bcc3 100644
--- a/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.cpp
+++ b/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.cpp
@@ -39,7 +39,7 @@ void ComputePositionsInsideLatticeQuadrants(std::vector<std::vector<double>>& la
                                             double l_xi, double l_alpha);
 } // namespace
 
-std::vector<std::vector<double>> RealSpace2DParacrystalUtils::Compute2DParacrystalLatticePositions(
+std::vector<std::vector<double>> RealSpace::Paracrystal2D::Compute2DParacrystalLatticePositions(
     const InterferenceFunction2DParaCrystal* p_iff, double layer_size)
 {
     auto& lattice = p_iff->lattice();
diff --git a/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.h b/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.h
index a2f22b26396b87d0252c15d9a3e9330d3d9940f2..0e4d520b85ee651e68580284a0312da63fe4d11a 100644
--- a/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.h
+++ b/GUI/Views/RealSpaceWidgets/RealSpace2DParacrystalUtils.h
@@ -19,7 +19,7 @@
 
 class InterferenceFunction2DParaCrystal;
 
-namespace RealSpace2DParacrystalUtils {
+namespace RealSpace::Paracrystal2D {
 std::vector<std::vector<double>>
 Compute2DParacrystalLatticePositions(const InterferenceFunction2DParaCrystal*, double layer_size);
 };