diff --git a/src/QHull.jl b/src/QHull.jl
index ac7d866..2d598bc 100644
--- a/src/QHull.jl
+++ b/src/QHull.jl
@@ -18,28 +18,32 @@ function __init__()
 end
 
 type Chull{T<:Real}
+    area::T
+    equations::Matrix{T}
+    ndim::Int64
+    max_bound::Vector{T}
+    min_bound::Vector{T}
+    neighbors::Matrix{Int32}
+    npoints::Int64
+    nsimplex::Int64
     points::Matrix{T}
-    vertices::Vector{Int}
-    simplices::Vector{Vector{Int}}
-    facets::Matrix{T}
+    simplices::Matrix{Int32}
+    vertices::Vector{Int32}
+    volume::T
 end
 
-## helper for base-0 / base-1 difference
-incone(x) = for i in 1:length(x)
-    x[i] += 1
-end
 
 function chull{T<:Real}(x::Matrix{T})
-    py = spatial[:ConvexHull](x)
-    points = convert(Matrix{T}, py["points"])
-    vertices = convert(Vector{Int}, py["vertices"])
-    incone(vertices)
-    simplices = convert(Vector{Vector{Int}}, py["simplices"])
-    for simplex in simplices
-        incone(simplex)
-    end
-    facets = convert(Matrix{T}, py["equations"])
-    Chull(points, vertices, simplices, facets)
+
+    hull = spatial[:ConvexHull](x)
+
+    ch = Chull([hull[field] for field in fieldnames(Chull)]...)
+
+    # fix base-0 / base-1 difference
+    ch.vertices += 1
+    ch.simplices += 1
+    ch.neighbors += 1
+    return ch
 end
 
 include("polyhedron.jl")
diff --git a/src/polyhedron.jl b/src/polyhedron.jl
index 9a677e2..5fc2190 100644
--- a/src/polyhedron.jl
+++ b/src/polyhedron.jl
@@ -73,8 +73,8 @@ function qhull{N, T}(h::SimpleVRepresentation{N, T})
     ch = chull(V)
     V = ch.points[ch.vertices, :]
     vnored = SimpleVRepresentation(V)
-    A = ch.facets[:, 1:N]
-    b = ch.facets[:, N+1]
+    A = ch.equations[:, 1:N]
+    b = ch.equations[:, N+1]
     h = SimpleHRepresentation(A, b)
     vnored, h
 end
@@ -97,7 +97,7 @@ function qhull{N, T<:Real}(h::SimpleHRepresentation{N, T})
     ch = chull(B)
     C = ch.points[ch.vertices, :]
     hnored = SimpleHRepresentation(C, ones(size(C, 1)))
-    Vlift = ch.facets
+    Vlift = ch.equations
     nvreps = size(Vlift, 1)
     irays = IntSet()
     ipoints = IntSet()
diff --git a/test/runtests.jl b/test/runtests.jl
index cdd81f5..2790ae9 100644
--- a/test/runtests.jl
+++ b/test/runtests.jl
@@ -10,9 +10,9 @@ pts = [-1.0 0;
        -1 2]
 
 hull = QHull.chull(pts)
-@test hull.vertices == [1, 3, 4, 6, 7]
+@test hull.vertices == Int32[1, 3, 4, 6, 7]
 @test size(hull.points) == size(pts)
-@test hull.simplices == Array{Int,1}[[3,1], [4,3], [6,4], [7,1], [7,6]]
+@test hull.simplices == Int32[3 1; 4 3; 6 4; 7 1; 7 6]
 
 ## multi-dim
 x = randn(1000, 5)