diff --git a/.eslintrc.json b/.eslintrc.json
index 407ef663dd..8527576da2 100644
--- a/.eslintrc.json
+++ b/.eslintrc.json
@@ -29,6 +29,7 @@
     "__BUILD__": false,
     "__VERSION__": false,
     "__STATIC_PATH__": false,
+    "__SUPERVISOR__": false,
     "Polymer": true
   },
   "env": {
diff --git a/build-scripts/bundle.js b/build-scripts/bundle.js
index 5402abc16f..277fa54bee 100644
--- a/build-scripts/bundle.js
+++ b/build-scripts/bundle.js
@@ -35,6 +35,7 @@ module.exports.definedVars = ({ isProdBuild, latestBuild, defineOverlay }) => ({
   __BUILD__: JSON.stringify(latestBuild ? "latest" : "es5"),
   __VERSION__: JSON.stringify(env.version()),
   __DEMO__: false,
+  __SUPERVISOR__: false,
   __BACKWARDS_COMPAT__: false,
   __STATIC_PATH__: "/static/",
   "process.env.NODE_ENV": JSON.stringify(
@@ -194,6 +195,9 @@ module.exports.config = {
       publicPath: publicPath(latestBuild, paths.hassio_publicPath),
       isProdBuild,
       latestBuild,
+      defineOverlay: {
+        __SUPERVISOR__: true,
+      },
     };
   },
 
diff --git a/src/components/ha-icon.ts b/src/components/ha-icon.ts
index 59bb2488c8..2c829299b4 100644
--- a/src/components/ha-icon.ts
+++ b/src/components/ha-icon.ts
@@ -361,7 +361,10 @@ const mdiDeprecatedIcons: DeprecatedIcon = {
 
 const chunks: Chunks = {};
 
-checkCacheVersion();
+// Supervisor doesn't use icons, and should not update/downgrade the icon DB.
+if (!__SUPERVISOR__) {
+  checkCacheVersion();
+}
 
 const debouncedWriteCache = debounce(() => writeCache(chunks), 2000);
 
diff --git a/src/types.ts b/src/types.ts
index 5d25b7bc8e..539dcb610d 100644
--- a/src/types.ts
+++ b/src/types.ts
@@ -21,6 +21,7 @@ declare global {
   var __VERSION__: string;
   var __STATIC_PATH__: string;
   var __BACKWARDS_COMPAT__: boolean;
+  var __SUPERVISOR__: boolean;
   /* eslint-enable no-var, no-redeclare */
 
   interface Window {