diff --git a/backend/src/api/websocket-handler.ts b/backend/src/api/websocket-handler.ts
index 1174a261d..a20e075f5 100644
--- a/backend/src/api/websocket-handler.ts
+++ b/backend/src/api/websocket-handler.ts
@@ -268,7 +268,8 @@ class WebsocketHandler {
       }
 
       const response = {
-        'block': block
+        'block': block,
+        'mempoolInfo': memPool.getMempoolInfo(),
       };
 
       if (mBlocks && client['want-mempool-blocks']) {