diff --git a/src/fluctmatch/models/enm.py b/src/fluctmatch/models/enm.py
index 261d732..74fa891 100644
--- a/src/fluctmatch/models/enm.py
+++ b/src/fluctmatch/models/enm.py
@@ -117,7 +117,8 @@ def create_topology(self, universe: mda.Universe):
         try:
             self.universe = universe.copy()
         except TypeError:
-            self.universe = universe
+            self.universe = mda.Universe(universe.filename,
+                                         universe.trajectory.filename)
 
         rename_universe(self.universe)