diff --git a/src/replica/replica_stub.cpp b/src/replica/replica_stub.cpp
index 833c8d61fc..6fbf60619d 100644
--- a/src/replica/replica_stub.cpp
+++ b/src/replica/replica_stub.cpp
@@ -2086,6 +2086,9 @@ void replica_stub::open_service()
         RPC_REPLICA_DISK_MIGRATE, "disk_migrate_replica", &replica_stub::on_disk_migrate);
     register_rpc_handler_with_rpc_holder(
         RPC_QUERY_APP_INFO, "query_app_info", &replica_stub::on_query_app_info);
+    register_rpc_handler_with_rpc_holder(RPC_SPLIT_UPDATE_CHILD_PARTITION_COUNT,
+                                         "update_child_group_partition_count",
+                                         &replica_stub::on_update_child_group_partition_count);
     register_rpc_handler_with_rpc_holder(RPC_SPLIT_NOTIFY_CATCH_UP,
                                          "child_notify_catch_up",
                                          &replica_stub::on_notify_primary_split_catch_up);