diff --git a/bin/sau b/bin/sau
index bd3478d..16bf262 100755
--- a/bin/sau
+++ b/bin/sau
@@ -115,7 +115,7 @@ def main():
         log.error(f'Upgrade failed: {e}')
         return 1
 
-    if not conf.getboolean('default', 'live_system', True):
+    if not conf.getboolean('default', 'live_system', fallback=True):
         return 0
 
     if conf.getboolean('default', 'do_service_restart', fallback=True):