diff --git a/src/core/BUILD.gn b/src/core/BUILD.gn
index ed272d12c..53d7f31d7 100644
--- a/src/core/BUILD.gn
+++ b/src/core/BUILD.gn
@@ -507,6 +507,7 @@ openthread_core_files = [
   "thread/mlr_manager.hpp",
   "thread/mlr_types.hpp",
   "thread/neighbor_table.cpp",
+  "thread/neighbor_table.hpp",
   "thread/network_data.cpp",
   "thread/network_data.hpp",
   "thread/network_data_leader.cpp",