diff --git a/src/state.rs b/src/state.rs
index 0bae898..3e7479e 100644
--- a/src/state.rs
+++ b/src/state.rs
@@ -5,6 +5,7 @@ use std::collections::{HashMap, VecDeque};
 use rumqttc::{AsyncClient, QoS};
 use tokio::sync::RwLock;
 
+use crate::utils::index;
 use crate::utils::booking::Booking;
 use crate::SLAVE_PROPERTIES;
 
@@ -43,7 +44,7 @@ impl<Kind> State<Kind> {
 
     //probably doesn't belong here, dunno where else to put it
     async fn update_power_state(&self, machine: &str, new_state: bool) {
-        let is_tasmota = SLAVE_PROPERTIES[machine][2];
+        let is_tasmota = SLAVE_PROPERTIES[machine][index::IS_TASMOTA];
         let topic =
             if is_tasmota {
                 format!("cmnd/{machine}/Power")
diff --git a/src/state/listener.rs b/src/state/listener.rs
index 172170c..9cf3f8a 100644
--- a/src/state/listener.rs
+++ b/src/state/listener.rs
@@ -7,6 +7,7 @@ use rumqttc::Event::Incoming;
 use rumqttc::Packet::Publish;
 
 use crate::{State, Listener, BOOKING_TOPIC, SLAVES_BY_MASTER, SLAVE_PROPERTIES};
+use crate::utils::index;
 use crate::utils::get_power_state;
 use crate::utils::logs::{log_debug, machinelog};
 use crate::utils::booking::Booking;
@@ -146,10 +147,10 @@ impl State<Listener> {
             .ok_or("unknown master")?
             .sub(&slaves_used_by_others)
             .into_iter()
-            .filter(|slave| if SLAVE_PROPERTIES[slave][0] { long_slaves } else { short_slaves });
+            .filter(|slave| if SLAVE_PROPERTIES[slave][index::RUNS_CONTINUOUSLY] { long_slaves } else { short_slaves });
 
         for slave in slaves_to_update {
-            if !power && SLAVE_PROPERTIES[&slave][1] {
+            if !power && SLAVE_PROPERTIES[&slave][index::NEEDS_TRAILING_TIME] {
                 let shutdown_timestamp = Instant::now() + Duration::from_secs(30);
                 self.scheduled_shutdowns.write().await.push_back((shutdown_timestamp, slave));
                 continue;
diff --git a/src/utils.rs b/src/utils.rs
index b13f7d6..d676686 100644
--- a/src/utils.rs
+++ b/src/utils.rs
@@ -5,6 +5,7 @@ use serde::de::DeserializeOwned;
 
 pub mod logs;
 pub mod booking;
+pub mod index;
 
 pub fn parse_toml_file<T: DeserializeOwned>(path: &str) -> T {
     let file_content = fs::read_to_string(path).expect("failed to read .toml file");
diff --git a/src/utils/index.rs b/src/utils/index.rs
new file mode 100644
index 0000000..03766d5
--- /dev/null
+++ b/src/utils/index.rs
@@ -0,0 +1,3 @@
+pub const RUNS_CONTINUOUSLY: usize = 0;
+pub const NEEDS_TRAILING_TIME: usize = 1;
+pub const IS_TASMOTA: usize = 2;
\ No newline at end of file