Fixed issue #286

diff --git a/ui/mtr.c b/ui/mtr.c
index 35953cf10d9a1b55925fa9581d13bee8d5329eaf..a3fef48d66fc763a339b24887384dd64f34ec168 100644 (file)
--- a/ui/mtr.c
+++ b/ui/mtr.c
@@ -305,6 +305,7 @@ static void init_fld_options(
         ctl->available_options[i] = data_fields[i].key;
         ctl->fld_index[data_fields[i].key] = i;
     }
+    ctl->available_options[i++] = '_';
     ctl->available_options[i] = 0;
 }