diff --git a/openmc/deplete/microxs.py b/openmc/deplete/microxs.py
index 32e0518ff6..29ddc7268f 100644
--- a/openmc/deplete/microxs.py
+++ b/openmc/deplete/microxs.py
@@ -106,7 +106,7 @@ class MicroXS(DataFrame):
         model.tallies = original_tallies
         model.materials = original_materials
 
-        return micro_xs
+        return cls(micro_xs)
 
     @classmethod
     def _add_dilute_nuclides(cls, chain_file, model, dilute_initial):