diff --git a/src/SimNDT/run_setup/paramJSON.py b/src/SimNDT/run_setup/paramJSON.py
index 21ddb58..88a75a3 100644
--- a/src/SimNDT/run_setup/paramJSON.py
+++ b/src/SimNDT/run_setup/paramJSON.py
@@ -181,6 +181,7 @@ data = OrderedDict({
     "Field": 0,
     "enableSignals": False,
     "enableImages": False,
+    "enableMaterials": False,
     "enableVolume": False,
     "enableView": False,
     "sensorShape": [],
@@ -199,4 +200,4 @@ folder_path = r"C:\Users\Kumar\Nextcloud\Work\GUW\sim_ndt\batch_processing_simul
 current_time = datetime.now().strftime("%Y%m%d_%H%M%S")
 save_path = os.path.join(folder_path, "simndt_params_{current_time}.json".format(current_time=current_time))
 with open(save_path, "w") as f:
-    json.dump(data, f, indent=2, sort_keys=False)
\ No newline at end of file
+    json.dump(data, f, indent=2, sort_keys=False)