diff --git a/lib/mps/matrix.jl b/lib/mps/matrix.jl
index eaf60ba4..db372f6c 100644
--- a/lib/mps/matrix.jl
+++ b/lib/mps/matrix.jl
@@ -155,14 +155,8 @@ function MPSMatrix(arr::MtlArray{T,3}) where T
     n_cols, n_rows, n_matrices = size(arr)
     row_bytes = sizeof(T)*n_cols
     desc = MPSMatrixDescriptor(n_rows, n_cols, n_matrices, row_bytes, row_bytes * n_rows, T)
-    mat = @objc [MPSMatrix alloc]::id{MPSMatrix}
-    obj = MPSMatrix(mat)
     offset = arr.offset * sizeof(T)
-    finalizer(release, obj)
-    @objc [obj::id{MPSMatrix} initWithBuffer:arr::id{MTLBuffer}
-                              offset:offset::NSUInteger
-                              descriptor:desc::id{MPSMatrixDescriptor}]::id{MPSMatrix}
-    return obj
+    return MPSMatrix(arr, desc, offset)
 end
 
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