diff --git a/appletree/context.py b/appletree/context.py
index c4bb209..286c489 100644
--- a/appletree/context.py
+++ b/appletree/context.py
@@ -64,6 +64,9 @@ def from_backend(cls, backend_h5_file_name):
             nwalkers = file["mcmc"].attrs["nwalkers"]
             batch_size = file["mcmc"].attrs["batch_size"]
         tree = cls(instruct)
+        # Overwrite the backend_h5 file name. If the user renames the
+        # backend file then it could be different from the one in intruct
+        tree.backend_h5 = backend_h5_file_name 
         tree.pre_fitting(nwalkers, batch_size=batch_size)
         return tree