diff --git a/grape/app/auto_app_base.h b/grape/app/auto_app_base.h
index 554062c5..af4b950a 100644
--- a/grape/app/auto_app_base.h
+++ b/grape/app/auto_app_base.h
@@ -77,7 +77,6 @@ class AutoAppBase {
  public:                                                               \
   using fragment_t = FRAG_T;                                           \
   using context_t = CONTEXT_T;                                         \
-  using ctx_data_t = typename context_t::data_t;                       \
   using message_manager_t = grape::AutoParallelMessageManager<FRAG_T>; \
   using worker_t = grape::AutoWorker<APP_T>;                           \
   static std::shared_ptr<worker_t> CreateWorker(                       \
diff --git a/grape/app/batch_shuffle_app_base.h b/grape/app/batch_shuffle_app_base.h
index 3d82ce89..ebd66414 100644
--- a/grape/app/batch_shuffle_app_base.h
+++ b/grape/app/batch_shuffle_app_base.h
@@ -71,7 +71,6 @@ class BatchShuffleAppBase {
  public:                                                          \
   using fragment_t = FRAG_T;                                      \
   using context_t = CONTEXT_T;                                    \
-  using ctx_data_t = typename context_t::data_t;                  \
   using message_manager_t = grape::BatchShuffleMessageManager;    \
   using worker_t = grape::BatchShuffleWorker<APP_T>;              \
   virtual ~APP_T() {}                                             \
diff --git a/grape/app/parallel_app_base.h b/grape/app/parallel_app_base.h
index 778161d4..49fd71ea 100644
--- a/grape/app/parallel_app_base.h
+++ b/grape/app/parallel_app_base.h
@@ -82,7 +82,6 @@ class ParallelAppBase {
  public:                                                          \
   using fragment_t = FRAG_T;                                      \
   using context_t = CONTEXT_T;                                    \
-  using ctx_data_t = typename context_t::data_t;                  \
   using message_manager_t = grape::ParallelMessageManager;        \
   using worker_t = grape::ParallelWorker<APP_T>;                  \
   virtual ~APP_T() {}                                             \