diff --git a/src/backend/mxnet/graph.jl b/src/backend/mxnet/graph.jl
index f235d7eb..e19706c8 100644
--- a/src/backend/mxnet/graph.jl
+++ b/src/backend/mxnet/graph.jl
@@ -51,14 +51,6 @@ graph(::Input, x) = x
 #                     weight = graph(vars, d.W),
 #                     bias = graph(vars, d.b))
 
-function interp{T<:AArray}(ctx, p::Constant{Flux.Param{T}})
-  id = gensym()
-  ctx[:params][id] = p.value.x
-  return mx.Variable(id)
-end
-
-interp(ctx, p::Constant) = node(p.value)
-
 function register(ctx::Context, node::mx.SymbolicNode)
   ctx[:stacks][nodename(node)] = stack(ctx)
   return node
@@ -66,21 +58,25 @@ end
 
 register(ctx::Context, node) = node
 
-function graph(ctx::Context, model, args...)
-  register(ctx, graph(model, args...))
+function graph{T<:AArray}(ctx::Context, p::Constant{Flux.Param{T}})
+  id = gensym()
+  ctx[:params][id] = p.value.x
+  return mx.Variable(id)
 end
 
-function interp(ctx, model, args...)
+graph(ctx::Context, p::Constant) = node(p.value)
+
+function graph(ctx::Context, model, args...)
   g = Flux.graph(model)
-  g == nothing && return graph(ctx, model, args...)
+  g == nothing && return register(ctx, graph(model, args...))
   DataFlow.iscyclic(g) && error("This model has a cycle; try unrolling it first.")
   interpret(ctx, g, args...)
 end
 
 function tograph(model, args...)
-  ctx = Context(mux(iline, ilambda, imap, iargs, ituple, interp),
+  ctx = Context(mux(iline, ilambda, imap, iargs, ituple, graph),
                 params = Dict(), stacks = Dict())
-  out = interp(ctx, model, map(constant, args)...)
+  out = graph(ctx, model, args...)
   return ctx[:params], ctx[:stacks], out
 end