diff --git a/binarycpython/utils/grid.py b/binarycpython/utils/grid.py
index 02211402f51dc14977c92ee0ea08fc9f157fded9..81c7e9ae7df8b26eea10ca25a799c479fe230f4a 100644
--- a/binarycpython/utils/grid.py
+++ b/binarycpython/utils/grid.py
@@ -1011,7 +1011,7 @@ class Population:
                     "Process {}: Extracting ensemble info from raw string".format(ID), self.grid_options["verbosity"], 2
                 )
 
-                ensemble_json = extract_ensemble_json_from_string(
+                ensemble_json['ensemble'] = extract_ensemble_json_from_string(
                     ensemble_raw_output
                 )  # Load this into a dict so that we can combine it later