From 19e1eaf2d76f8cbb8d60afb7d958355c5d921275 Mon Sep 17 00:00:00 2001
From: Paulus Schoutsen <balloob@gmail.com>
Date: Thu, 3 Feb 2022 00:59:04 -0800
Subject: [PATCH] Guard load diagnostics (#11518)

---
 src/panels/config/devices/ha-config-device-page.ts | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/src/panels/config/devices/ha-config-device-page.ts b/src/panels/config/devices/ha-config-device-page.ts
index 58db797b3c..ee1d3653f2 100644
--- a/src/panels/config/devices/ha-config-device-page.ts
+++ b/src/panels/config/devices/ha-config-device-page.ts
@@ -201,6 +201,10 @@ export class HaConfigDevicePage extends LitElement {
   }
 
   private async _renderDiagnosticButtons(requestId: number): Promise<void> {
+    if (!isComponentLoaded(this.hass, "diagnostics")) {
+      return;
+    }
+
     const device = this._device(this.deviceId, this.devices);
 
     if (!device) {