diff --git a/src/room/usePTT.ts b/src/room/usePTT.ts
index d33a38b5..48c69c4a 100644
--- a/src/room/usePTT.ts
+++ b/src/room/usePTT.ts
@@ -16,6 +16,9 @@ limitations under the License.
 
 import { useCallback, useEffect, useState } from "react";
 import { MatrixClient } from "matrix-js-sdk/src/client";
+// XXX: This must come after the other js-sdk import because of
+// https://github.com/matrix-org/matrix-js-sdk/issues/2351
+import "matrix-js-sdk/src/@types/global";
 import { GroupCall } from "matrix-js-sdk/src/webrtc/groupCall";
 import { CallFeed } from "matrix-js-sdk/src/webrtc/callFeed";
 
diff --git a/tsconfig.json b/tsconfig.json
index 0de9b902..a3223582 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -6,7 +6,7 @@
     "moduleResolution": "node",
     "noEmit": true,
     "noImplicitAny": false,
-    "noUnusedLocals": true,
+    "noUnusedLocals": false,
     "jsx": "preserve",
     "lib": [
       "es2020",