diff --git a/proto/batch_plan.proto b/proto/batch_plan.proto
index 7b5fe06b4d563..9e409f057807a 100644
--- a/proto/batch_plan.proto
+++ b/proto/batch_plan.proto
@@ -30,11 +30,8 @@ message RowSeqScanNode {
   }
   // If along with `batch_limit`, `chunk_size` will be set.
   ChunkSize chunk_size = 6;
-  message Limit {
-    uint64 limit = 1;
-  }
   // The pushed down `batch_limit`. Max rows needed to return.
-  Limit limit = 7;
+  optional uint64 limit = 7;
 }
 
 message SysRowSeqScanNode {
diff --git a/src/batch/src/executor/row_seq_scan.rs b/src/batch/src/executor/row_seq_scan.rs
index 8cd32688936bd..f45342d4d1363 100644
--- a/src/batch/src/executor/row_seq_scan.rs
+++ b/src/batch/src/executor/row_seq_scan.rs
@@ -255,7 +255,7 @@ impl BoxedExecutorBuilder for RowSeqScanExecutorBuilder {
         } else {
             source.context.get_config().developer.chunk_size as u32
         };
-        let limit = seq_scan_node.limit.clone().map(|limit| limit.limit);
+        let limit = seq_scan_node.limit;
         let metrics = source.context().batch_metrics();
 
         dispatch_state_store!(source.context().state_store(), state_store, {
diff --git a/src/frontend/src/optimizer/plan_node/batch_seq_scan.rs b/src/frontend/src/optimizer/plan_node/batch_seq_scan.rs
index 3dd5b4fc6c2e3..e43673350fb43 100644
--- a/src/frontend/src/optimizer/plan_node/batch_seq_scan.rs
+++ b/src/frontend/src/optimizer/plan_node/batch_seq_scan.rs
@@ -20,7 +20,7 @@ use risingwave_common::error::Result;
 use risingwave_common::types::ScalarImpl;
 use risingwave_common::util::scan_range::{is_full_range, ScanRange};
 use risingwave_pb::batch_plan::plan_node::NodeBody;
-use risingwave_pb::batch_plan::row_seq_scan_node::{ChunkSize, Limit};
+use risingwave_pb::batch_plan::row_seq_scan_node::ChunkSize;
 use risingwave_pb::batch_plan::RowSeqScanNode;
 
 use super::batch::prelude::*;
@@ -251,7 +251,7 @@ impl ToBatchPb for BatchSeqScan {
                 .core
                 .chunk_size
                 .map(|chunk_size| ChunkSize { chunk_size }),
-            limit: self.limit().map(|limit| Limit { limit }),
+            limit: *self.limit(),
         })
     }
 }