diff --git a/crates/bevy_input/src/system.rs b/crates/bevy_input/src/system.rs
index 018c47794b4e10..753115bdebcdbf 100644
--- a/crates/bevy_input/src/system.rs
+++ b/crates/bevy_input/src/system.rs
@@ -1,11 +1,13 @@
-use crate::{
-    keyboard::{KeyCode, KeyboardInput},
-    ElementState,
-};
+use crate::{ElementState, KeyCode, KeyboardInput};
 use bevy_app::AppExit;
 use bevy_ecs::prelude::{EventReader, EventWriter};
 
-/// Sends the `AppExit` event whenever the "esc" key is pressed.
+/// Sends an [`AppExit`] event whenever the `ESC` key is pressed.
+///
+/// ## Note
+///
+/// This system is not added as part of the `DefaultPlugins`. You can add the [`exit_on_esc_system`]
+/// yourself if desired.
 pub fn exit_on_esc_system(
     mut keyboard_input_events: EventReader<KeyboardInput>,
     mut app_exit_events: EventWriter<AppExit>,