diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json b/SAS/TMSS/backend/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
index 4c6999f11e7baa6c827a73e836ed37d56fb9117b..2fb3614642699975018bf09db55d6c2ce5595dab 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/schemas/common_schema_template-stations-1.json
@@ -80,7 +80,8 @@
       "type":"integer",
       "title":"Maximum number of stations to omit",
       "description":"Maximum number of stations that can be omitted from a group (due to maintenance for example)",
-      "minimum":0
+      "minimum":0,
+      "default": 0
     },
     "station_group":{
       "type":"object",