diff --git a/rpc/src/module/pool.rs b/rpc/src/module/pool.rs
index aab1071e0d2..9fe30b357eb 100644
--- a/rpc/src/module/pool.rs
+++ b/rpc/src/module/pool.rs
@@ -287,7 +287,8 @@ pub trait PoolRpc {
     ///     "tip_number": "0x400",
     ///     "total_tx_cycles": "0x219",
     ///     "total_tx_size": "0x112",
-    ///     "tx_size_limit": "0x7d000"
+    ///     "tx_size_limit": "0x7d000",
+    ///     "verify_queue_size": "0x0"
     ///   }
     /// }
     /// ```