diff --git a/spec/pane-spec.coffee b/spec/pane-spec.coffee
index 3a77c3892..6851bb8f4 100644
--- a/spec/pane-spec.coffee
+++ b/spec/pane-spec.coffee
@@ -693,8 +693,7 @@ describe "Pane", ->
 
       pane.showItem(new Unserializable)
 
-      state = pane.testSerialization()
-      newPane = atom.deserializers.deserialize(state)
+      newPane = pane.testSerialization()
       expect(newPane.activeItem).toEqual pane.items[0]
       expect(newPane.items.length).toBe pane.items.length - 1