diff --git a/cpp/CMakeLists.txt b/cpp/CMakeLists.txt
index 231e0e9b..98e26cfc 100644
--- a/cpp/CMakeLists.txt
+++ b/cpp/CMakeLists.txt
@@ -541,3 +541,9 @@ set(_KANBAN_CPP_DIR ${CMAKE_SOURCE_DIR}/../apps/kanban_cpp)
 if(EXISTS ${_KANBAN_CPP_DIR}/CMakeLists.txt)
     add_subdirectory(${_KANBAN_CPP_DIR} ${CMAKE_BINARY_DIR}/apps/kanban_cpp)
 endif()
+
+# --- data_table_bench (lives in apps/, issue 0133) ---
+set(_DATA_TABLE_BENCH_DIR ${CMAKE_SOURCE_DIR}/../apps/data_table_bench)
+if(EXISTS ${_DATA_TABLE_BENCH_DIR}/CMakeLists.txt)
+    add_subdirectory(${_DATA_TABLE_BENCH_DIR} ${CMAKE_BINARY_DIR}/apps/data_table_bench)
+endif()