diff --git a/src/backend/mxnet/model.jl b/src/backend/mxnet/model.jl
index c5c8bb7f..e03d4e0f 100644
--- a/src/backend/mxnet/model.jl
+++ b/src/backend/mxnet/model.jl
@@ -69,8 +69,8 @@ function executor(graph::Graph, input...)
   return exec
 end
 
-function (exec::Exec)(input)
-  copy!(exec.args[exec.graph.input[1]], input)
+function (exec::Exec)(input...)
+  foreach(kv -> copy!(exec.args[kv[1]], kv[2]), dictt(exec.graph.input, input))
   mx.forward(exec.exec, is_train = true)
   mxungroup(exec.graph.output, copy(exec.outs))
 end