diff --git a/client/src/main/Player.svelte b/client/src/main/Player.svelte
index ae2d2ec9..068e7cd9 100644
--- a/client/src/main/Player.svelte
+++ b/client/src/main/Player.svelte
@@ -12,7 +12,7 @@
   import { singlePlayRotators, stop as stopSinglePlayRotator } from "../stores/single-play-rotators"
   import { db } from "../stores/db"
   import { Wait } from "../stores/player"
-  import { setLED } from "../stores/midi"
+  import { setLED, LED_OFF } from "../stores/midi"
 
   // Object automatically updates on change
   let items = []
@@ -39,7 +39,7 @@
   $: overtime = items.length > 0 && items[0].type === "wait" && items[0].overtime
 
   $: if (items.length === 0) {
-    setLED(0)
+    setLED(LED_OFF)
   }
 
   const doneWaiting = () => {
diff --git a/client/src/main/player/Buttons.svelte b/client/src/main/player/Buttons.svelte
index d7f66510..9397a541 100644
--- a/client/src/main/player/Buttons.svelte
+++ b/client/src/main/player/Buttons.svelte
@@ -7,7 +7,15 @@
 
   import { userConfig } from "../../stores/config"
   import { blockSpacebarPlay } from "../../stores/player"
-  import { setLED, registerButtonPressCallback } from "../../stores/midi"
+  import {
+    setLED,
+    registerButtonPressCallback,
+    LED_OFF,
+    LED_ON,
+    LED_FLASH,
+    LED_PULSATE_SLOW,
+    LED_PULSATE_FAST
+  } from "../../stores/midi"
 
   import Icon from "../../components/Icon.svelte"
 
@@ -30,15 +38,15 @@
 
   let ledState
   $: if (playDisabled) {
-    ledState = 0 // LED_OFF
+    ledState = LED_OFF
   } else if (isPaused) {
-    ledState = 2 // LED_FLASH
+    ledState = LED_FLASH
   } else if (overdue) {
-    ledState = 4 // LED_PULSATE_FAST
+    ledState = LED_PULSATE_FAST
   } else if (overtime) {
-    ledState = 3 // LED_PULSATE_SLOW
+    ledState = LED_PULSATE_SLOW
   } else {
-    ledState = 1 // LED_ON
+    ledState = LED_ON
   }
 
   $: setLED(ledState)
diff --git a/client/src/stores/midi.js b/client/src/stores/midi.js
index caa5e43b..891ef5de 100644
--- a/client/src/stores/midi.js
+++ b/client/src/stores/midi.js
@@ -10,13 +10,19 @@ let buttonPressCallback = noop
 
 let lastLEDValue = 0
 
+export const LED_OFF = 0
+export const LED_ON = 1
+export const LED_FLASH = 2
+export const LED_PULSATE_SLOW = 3
+export const LED_PULSATE_FAST = 4
+
 const updateMidiDevices = (enabled = null) => {
   if (enabled === null) {
     enabled = get(userConfig).enableMIDIButtonBox
   }
 
   if (!enabled) {
-    setLED(0, true)
+    setLED(LED_OFF, true)
   }
 
   outputs = []
@@ -65,3 +71,7 @@ export let registerButtonPressCallback = (callback) => (buttonPressCallback = ca
   updateMidiDevices()
   midi.onstatechange = () => updateMidiDevices()
 })()
+
+window.addEventListener("beforeunload", () => {
+  setLED(LED_OFF, true)
+})