diff --git a/Setting-up-the-config-file.md b/Setting-up-the-config-file.md
index 20292fd..ce7a411 100644
--- a/Setting-up-the-config-file.md
+++ b/Setting-up-the-config-file.md
@@ -211,7 +211,7 @@ The settings-branch is quite extensive, and besides the `world`-node, it is basi
 * `enabled: [true|false]` - If false, players cannot join the arena.
 * `protect: [true|false]` - If false, the arena will not be protected from explosions and players breaking the blocks.
 * `entry-fee: [$<amount>|<item>:<amount>]` - Follows the exact same notation as the class items and rewards (read the [[Item and Reward Syntax]]-page). `$20` will subtract 20 of whatever currency you use from the players upon joining. `$5, stick:2` will require the player to have 5 currency units and 2 sticks to join the arena. The entry-fee will be refunded if the player leaves before the arena starts.
-* `default-class: <class>` - If non-empty, this class is automatically assigned to players when they join the arena. The class name must be all lowercase and with no spaces.
+* `default-class: <class>` - If non-empty, this class is automatically assigned to players when they join the arena. The class name must be all lowercase and with no spaces. If used in combination with `auto-ready: true`, it is necessary to also set a `start-delay-timer` to prevent the arena from starting immediately when the first player joins.
 * `clear-wave-before-next: [true|false]` - If true, no monsters will spawn before all monsters of the previous wave have been killed.
 * `clear-boss-before-next: [true|false]` - If true, no new waves will spawn before the current boss (if any) is dead.
 * `clear-wave-before-boss: [true|false]` - If true, a boss wave will not spawn until all previous monsters have been killed.
@@ -243,7 +243,7 @@ The settings-branch is quite extensive, and besides the `world`-node, it is basi
 * `auto-ignite-fuse: <number>` - The time (in ticks) before an auto-ignited TNT block explodes after being placed.
 * `auto-start-timer: <time>` - The time (in seconds) before the arena will be force started after the first player has joined the lobby (the default of 0 means deactivated or infinite time). Non-ready players will be removed from the lobby. This setting is useful to prevent ill-minded players from delaying or preventing other players from starting the arena. Note that this feature is incompatible with `min-players`!
 * `start-delay-timer: <time>` - The time (in seconds) before the arena can be started after the first player has joined the lobby. This setting is useful if you want to give your players a fixed window of time to join the arena after the first player has joined, so they can't just start it off right away. Note that this feature is incompatible with `min-players`!
-* `auto-ready: [true|false]` - When set to true, players are automatically flagged as ready when they pick a class. Useful for arenas with many players where hitting an iron block becomes difficult.
+* `auto-ready: [true|false]` - When set to true, players are automatically flagged as ready when they pick a class. Useful for arenas with many players where hitting an iron block becomes difficult. If used in combination with a `default-class`, it is necessary to also set a `start-delay-timer` to prevent the arena from starting immediately when the first player joins.
 * `use-class-chests: [true|false]` - When set to true, MobArena will try to use [[Class Chests]] in this arena when available. Otherwise, it will only use the class configuration from the config-file.
 * `arena-warp-offset: <radius>` - A radius (in blocks) around the arena warp in which players can spawn. If set to a value greater than 0, MobArena will randomize the exact arena warp location for each player. This can help prevent suffocation damage when many players join an arena together.
 * `boss-health-bar: [boss-bar|title|name|none]` - Shows a boss health bar. If set to `boss-bar` on 1.11+, a boss bar like the one for ender dragons and withers is used. If set to `title`, the Chapters/Titles API is used to show the health as a bar of colored pipe symbols (`||||`) on every hit. If set to `name`, the colored pipe symbols appear as the name of the boss. `none` disables the boss bar.