diff --git a/src/vector/init.tsx b/src/vector/init.tsx
index bb5e968c7c..de022622db 100644
--- a/src/vector/init.tsx
+++ b/src/vector/init.tsx
@@ -49,8 +49,6 @@ export function preparePlatform() {
         console.log("Using Web platform");
         PlatformPeg.set(new WebPlatform());
     }
-    // Register service worker if available on this platform
-    PlatformPeg.get().registerServiceWorker();
 }
 
 export async function loadConfig() {
diff --git a/src/vector/platform/WebPlatform.ts b/src/vector/platform/WebPlatform.ts
index 33e37edfe8..9f9f4a3995 100644
--- a/src/vector/platform/WebPlatform.ts
+++ b/src/vector/platform/WebPlatform.ts
@@ -34,16 +34,18 @@ const POKE_RATE_MS = 10 * 60 * 1000; // 10 min
 export default class WebPlatform extends VectorBasePlatform {
     private runningVersion: string = null;
 
-    getHumanReadableName(): string {
-        return 'Web Platform'; // no translation required: only used for analytics
-    }
-
-    registerServiceWorker(): void {
+    constructor() {
+        super();
+        // Register service worker if available on this platform
         if ('serviceWorker' in navigator) {
             navigator.serviceWorker.register('sw.js');
         }
     }
 
+    getHumanReadableName(): string {
+        return 'Web Platform'; // no translation required: only used for analytics
+    }
+
     /**
      * Returns true if the platform supports displaying
      * notifications, otherwise false.