diff --git a/src/backend/mxnet/graph.jl b/src/backend/mxnet/graph.jl
index 7884d4ae..fe9ccd07 100644
--- a/src/backend/mxnet/graph.jl
+++ b/src/backend/mxnet/graph.jl
@@ -26,6 +26,7 @@ graph(::typeof(relu), x) = mx.Activation(x, act_type = :relu)
 graph(::typeof(tanh), x) = mx.Activation(x, act_type = :tanh)
 graph(::typeof(flatten), x) = mx.Flatten(x)
 graph(::typeof(hcat), xs...) = mx.concat(xs..., dim = 2-1)
+graph(::typeof(vec), xs) = reshape(xs, shape = (-1,))
 
 graph(::typeof(broadcast), ::typeof(+), args...) = mx.broadcast_plus(args...)
 graph(::typeof(broadcast), ::typeof(*), args...) = mx.broadcast_mul(args...)