diff --git a/src/yunohost/data_migrations/0021_migrate_to_bullseye.py b/src/yunohost/data_migrations/0021_migrate_to_bullseye.py
index 59b6ba517..a2511faf9 100644
--- a/src/yunohost/data_migrations/0021_migrate_to_bullseye.py
+++ b/src/yunohost/data_migrations/0021_migrate_to_bullseye.py
@@ -32,7 +32,7 @@ N_NEXT_YUNOHOST = 11
 
 VENV_BACKUP_SUFFIX = "_BACKUP_VENV"
 VENV_REQUIREMENTS_SUFFIX = "_req.txt"
-VENV_IGNORE = "VENVNOREGEN"
+VENV_IGNORE = "ynh_migration_no_regen"
 
 def _get_all_venvs(dir,level=0,maxlevel=2):
     # Using os functions instead of glob, because glob doesn't support hidden folders, and we need recursion with a fixed depth