diff --git a/src/backend/mxnet/model.jl b/src/backend/mxnet/model.jl
index da3b62f6..88472aa3 100644
--- a/src/backend/mxnet/model.jl
+++ b/src/backend/mxnet/model.jl
@@ -7,11 +7,6 @@ type MXModel <: Model
   exec::mx.Executor
 end
 
-function tond!(nd::mx.NDArray, xs::AArray)
-  mx.copy_ignore_shape!(nd, xs)
-  nd
-end
-
 tond(xs::AArray) = copy!(mx.zeros(size(xs)), xs)
 
 fromnd(xs::mx.NDArray) = copy(xs)
@@ -34,7 +29,7 @@ end
 
 function loadparams!(model::MXModel)
   for (name, arr) in model.exec.arg_dict
-    haskey(model.params, name) && tond!(arr, model.params[name])
+    haskey(model.params, name) && copy!(arr, model.params[name])
   end
   return model
 end
@@ -52,7 +47,7 @@ function mxnet(model::Model, input)
 end
 
 function (model::MXModel)(input)
-  tond!(model.exec.arg_dict[:input], input)
+  copy!(model.exec.arg_dict[:input], input)
   mx.forward(model.exec, is_train = true)
   fromnd(model.exec.outputs[1])
 end