diff --git a/app/soapbox/features/ui/index.tsx b/app/soapbox/features/ui/index.tsx
index 6cd41dde5..b3ad6b8bf 100644
--- a/app/soapbox/features/ui/index.tsx
+++ b/app/soapbox/features/ui/index.tsx
@@ -423,7 +423,7 @@ const UI: React.FC<IUI> = ({ children }) => {
       if (!userStream.current) {
         userStream.current = dispatch(connectUserStream({ statContext }));
       }
-      if (!nostrStream.current && window.nostr) {
+      if (!nostrStream.current && features.nostrSign && window.nostr) {
         nostrStream.current = dispatch(connectNostrStream());
       }
     }
diff --git a/app/soapbox/utils/features.ts b/app/soapbox/utils/features.ts
index 1b42dd539..429dd2a1f 100644
--- a/app/soapbox/utils/features.ts
+++ b/app/soapbox/utils/features.ts
@@ -680,6 +680,12 @@ const getInstanceFeatures = (instance: Instance) => {
       v.software === MASTODON && gte(v.compatVersion, '3.3.0'),
     ]),
 
+    /**
+     * Ability to sign Nostr events over websocket.
+     * @see GET /api/v1/streaming?stream=nostr
+     */
+    nostrSign: v.software === DITTO,
+
     /**
      * Add private notes to accounts.
      * @see POST /api/v1/accounts/:id/note