diff --git a/binarycpython/utils/grid_options_defaults.py b/binarycpython/utils/grid_options_defaults.py
index 2f459719f777bde5fbd243fa8af0d031eec5437d..e1cc9a492211073206768481c22fec886e6516e5 100644
--- a/binarycpython/utils/grid_options_defaults.py
+++ b/binarycpython/utils/grid_options_defaults.py
@@ -191,6 +191,7 @@ class grid_options_defaults():
             # HPC variables
             ########################################
             "HPC_force_join" : 0, # if True, and the HPC variable ("slurm" or "condor") is 3, skip checking our own job and force the join
+            "HPC_rebuild_joinlist": 1, # if True, ignore the joinlist we would usually use and rebuild it automatically
 
             ########################################
             # Slurm stuff