diff --git a/src/core.jl b/src/core.jl
index df5f88b..6708ab0 100644
--- a/src/core.jl
+++ b/src/core.jl
@@ -151,3 +151,7 @@ MLJBase.predict(::EitherIteratedModel, fitresult, Xnew) =
 
 MLJBase.transform(::EitherIteratedModel, fitresult, Xnew) =
     transform(fitresult, Xnew)
+
+# here `fitresult` is a trained atomic machine:
+MLJBase.save(::EitherIteratedModel, fitresult) = MLJBase.serializable(fitresult)
+MLJBase.restore(::EitherIteratedModel, fitresult) = MLJBase.restore!(fitresult)
diff --git a/test/core.jl b/test/core.jl
index 566b5ac..f7dccde 100644
--- a/test/core.jl
+++ b/test/core.jl
@@ -285,7 +285,7 @@ end
     seekstart(io)
     mach2 = machine(io)
     close(io)
-    @test_broken MLJBase.predict(mach2, (; x = rand(2))) ≈ fill(42.0, 2)
+    @test MLJBase.predict(mach2, (; x = rand(2))) ≈ fill(42.0, 2)
 end
 
 end