diff --git a/src/intertypes/InterTypes.jl b/src/intertypes/InterTypes.jl
index d728817..a8fa84d 100644
--- a/src/intertypes/InterTypes.jl
+++ b/src/intertypes/InterTypes.jl
@@ -82,6 +82,16 @@ end
   NamedACSetType(typespec::ACSetTypeSpec)
 end
 
+exports(::InterTypeDecl) = Symbol[]
+
+function exports(acset_type::NamedACSetType)
+  if !isnothing(acset_type.typespec.genericname)
+    [acset_type.typespec.genericname]
+  else
+    []
+  end
+end
+
 function hashdecls end
 
 struct InterTypeModule
@@ -98,6 +108,15 @@ struct InterTypeModule
   end
 end
 
+function exports(mod::InterTypeModule)
+  export_list = Symbol[]
+  for (name, decl) in pairs(mod.declarations)
+    push!(export_list, name)
+    append!(export_list, exports(decl))
+  end
+  export_list
+end
+
 function intertype end
 
 abstract type ExportTarget end
diff --git a/src/intertypes/julia.jl b/src/intertypes/julia.jl
index fcd0402..dec9556 100644
--- a/src/intertypes/julia.jl
+++ b/src/intertypes/julia.jl
@@ -313,7 +313,7 @@ function include_intertypes(into::Module, file::String, imports::AbstractVector)
   into.include(as_intertypes(mod), file)
   # recompute the hash
   mod = InterTypeModule(name, mod.imports, mod.declarations)
-  into.eval(Expr(:export, keys(mod.declarations)...))
+  into.eval(Expr(:export, exports(mod)...))
   mod
 end
 
diff --git a/test/intertypes/InterTypes.jl b/test/intertypes/InterTypes.jl
index bcf13e3..4003599 100644
--- a/test/intertypes/InterTypes.jl
+++ b/test/intertypes/InterTypes.jl
@@ -69,7 +69,14 @@ g = EDWeightedGraph()
 add_parts!(g, :V, 2)
 add_part!(g, :E, src=1, tgt=2, weight=EdgeData(:mass_ave, 42))
 
-@test testjson(m)
+@test testjson(g)
+
+sg = WeightedGraph{Symbol}()
+
+add_parts!(sg, :V, 2)
+add_part!(sg, :E, src=1, tgt=2, weight=:mass_ave)
+
+@test testjson(sg)
 
 generate_module(wgraph, JSONTarget)