diff --git a/src/vector/platform/ElectronPlatform.tsx b/src/vector/platform/ElectronPlatform.tsx
index 0dd57ef45f..10b72d63d1 100644
--- a/src/vector/platform/ElectronPlatform.tsx
+++ b/src/vector/platform/ElectronPlatform.tsx
@@ -324,6 +324,14 @@ export default class ElectronPlatform extends VectorBasePlatform {
         return 'Electron Platform'; // no translation required: only used for analytics
     }
 
+    /**
+     * Return true if platform supports multi-language
+     * spell-checking, otherwise false.
+     */
+    supportsMultiLanguageSpellCheck(): boolean {
+        return true;
+    }
+
     setNotificationCount(count: number) {
         if (this.notificationCount === count) return;
         super.setNotificationCount(count);
diff --git a/src/vector/platform/WebPlatform.ts b/src/vector/platform/WebPlatform.ts
index 2e739a2660..c2f3743609 100644
--- a/src/vector/platform/WebPlatform.ts
+++ b/src/vector/platform/WebPlatform.ts
@@ -38,6 +38,14 @@ export default class WebPlatform extends VectorBasePlatform {
         return 'Web Platform'; // no translation required: only used for analytics
     }
 
+    /**
+     * Return true if platform supports multi-language
+     * spell-checking, otherwise false.
+     */
+    supportsMultiLanguageSpellCheck(): boolean {
+        return false;
+    }
+
     /**
      * Returns true if the platform supports displaying
      * notifications, otherwise false.