diff --git a/src/global_key_set.H b/src/global_key_set.H
index cfa4a9ef0..c31745af5 100644
--- a/src/global_key_set.H
+++ b/src/global_key_set.H
@@ -8,6 +8,7 @@ global_valid_keys = {
   "dbthresh",
   "time",
   "dtime",
+  "maxMindt",
   "PFbufsz",
   "NICE",
   "VERBOSE",