diff --git a/src/client_manager.cc b/src/client_manager.cc
index 0053ebf0..9ca0af5e 100644
--- a/src/client_manager.cc
+++ b/src/client_manager.cc
@@ -122,8 +122,7 @@ WindowAndSelections ClientManager::get_free_window(Buffer& buffer)
 void ClientManager::add_free_window(std::unique_ptr<Window>&& window, SelectionList selections)
 {
     window->clear_display_buffer();
-    Buffer& buffer = window->buffer();
-    m_free_windows.push_back({ std::move(window), SelectionList{ std::move(selections) }, buffer.timestamp() });
+    m_free_windows.push_back({ std::move(window), SelectionList{ std::move(selections) } });
 }
 
 void ClientManager::ensure_no_client_uses_buffer(Buffer& buffer)
diff --git a/src/client_manager.hh b/src/client_manager.hh
index 8ebfaa37..35a1376f 100644
--- a/src/client_manager.hh
+++ b/src/client_manager.hh
@@ -11,7 +11,6 @@ struct WindowAndSelections
 {
     std::unique_ptr<Window> window;
     SelectionList selections;
-    size_t timestamp;
 };
 
 class ClientManager : public Singleton<ClientManager>