diff --git a/src/kvstore/kvstore_dist.h b/src/kvstore/kvstore_dist.h
index 0a13b6ab2635..59d9158012ef 100644
--- a/src/kvstore/kvstore_dist.h
+++ b/src/kvstore/kvstore_dist.h
@@ -292,9 +292,8 @@ class KVStoreDist : public KVStoreLocal {
                   << " size: " << size;
       }
       auto vals = new ps::SArray<real_t>(data, size, false);
-      CHECK_NOTNULL(ps_worker_)->ZPull(pskv.keys, vals, &pskv.lens, kRowSparsePushPull, [vals, cb]() {
-        delete vals; cb();
-      });
+      CHECK_NOTNULL(ps_worker_)->ZPull(pskv.keys, vals, &pskv.lens, kRowSparsePushPull,
+        [vals, cb]() { delete vals; cb(); });
     };
     CHECK_NOTNULL(Engine::Get())->PushAsync(
         pull_from_servers,
@@ -464,7 +463,6 @@ class KVStoreDist : public KVStoreLocal {
   /// \brief send & recver buffer
   std::unordered_map<int, NDArray> comm_buf_;
   bool row_sparse_verbose_;
-
 };
 
 }  // namespace kvstore
diff --git a/src/kvstore/kvstore_dist_server.h b/src/kvstore/kvstore_dist_server.h
index 5b3e8bff848f..59d2cb705654 100644
--- a/src/kvstore/kvstore_dist_server.h
+++ b/src/kvstore/kvstore_dist_server.h
@@ -382,7 +382,7 @@ class KVStoreDistServer {
   struct RequestBuf {
     std::vector<ps::KVMeta> requests;
     std::unordered_set<int> change_set;
-    };
+  };
 
   std::unordered_map<int, NDArray> merge_buf_;
   std::unordered_map<int, RequestBuf> request_buf_;