diff --git a/src/atlas/grid/detail/grid/CubedSphere2.h b/src/atlas/grid/detail/grid/CubedSphere2.h
index d16425f5d..3c67c40fc 100644
--- a/src/atlas/grid/detail/grid/CubedSphere2.h
+++ b/src/atlas/grid/detail/grid/CubedSphere2.h
@@ -150,7 +150,6 @@ class CubedSphere2 : public Grid {
 
 private:
     using CSIndices = std::array<idx_t, 3>;
-    using PointAlphaBeta = Point2;
 
     CSIndices get_cs_indices(gidx_t n) const;
     PointXY ij_to_tangent_coord(idx_t i, idx_t j) const;