diff --git a/src/hypercube.jl b/src/hypercube.jl
index f352094..8f17df2 100644
--- a/src/hypercube.jl
+++ b/src/hypercube.jl
@@ -1,4 +1,5 @@
 origin(prim::HyperCube) = prim.origin
+width(prim::HyperCube)  = prim.width
 widths(prim::HyperCube{N,T}) where {N,T} = Vec{N,T}(prim.width)
 maximum(prim::HyperCube{N,T}) where {N,T} = origin(prim)+widths(prim)
 minimum(prim::HyperCube{N,T}) where {N,T} = origin(prim)
diff --git a/test/hyperrectangles.jl b/test/hyperrectangles.jl
index 95f3681..c93c7fe 100644
--- a/test/hyperrectangles.jl
+++ b/test/hyperrectangles.jl
@@ -4,6 +4,7 @@ using LinearAlgebra
     @testset "Core" begin
         x = centered(HyperCube)
         @test origin(x) == Vec3f0(-0.5)
+        @test width(x) == 1.0f0
         @test widths(x) == Vec3f0(1.0)
         @test maximum(x) == Vec3f0(0.5)
         @test minimum(x) == Vec3f0(-0.5)