diff --git a/process/core/io/obsolete_vars.py b/process/core/io/obsolete_vars.py
index 98525c127..4d0197d86 100644
--- a/process/core/io/obsolete_vars.py
+++ b/process/core/io/obsolete_vars.py
@@ -542,6 +542,7 @@
     "fniterpump",
     "fpoloidalpower",
     "ftemp_croco_quench_max",
+    "fne0",
 ]
 
 OBS_VARS.update(dict.fromkeys(fvalues_list, None))