diff --git a/game_eggs/steamcmd_servers/insurgency_sandstorm/egg-insurgency--sandstorm.json b/game_eggs/steamcmd_servers/insurgency_sandstorm/egg-insurgency--sandstorm.json
index 724c0989..562e9f4c 100644
--- a/game_eggs/steamcmd_servers/insurgency_sandstorm/egg-insurgency--sandstorm.json
+++ b/game_eggs/steamcmd_servers/insurgency_sandstorm/egg-insurgency--sandstorm.json
@@ -60,7 +60,7 @@
         {
             "name": "Max Players",
             "description": "Sets the maximum number of players.",
-            "env_variable": "MAXPLAYERS",
+            "env_variable": "MAX_PLAYERS",
             "default_value": "28",
             "user_viewable": true,
             "user_editable": true,