diff --git a/meson.build b/meson.build
index 4c58262..093e60f 100644
--- a/meson.build
+++ b/meson.build
@@ -356,15 +356,16 @@
     'http/mutual_tls.cpp',
     'redfish-core/src/dbus_log_watcher.cpp',
     'redfish-core/src/error_messages.cpp',
-    'redfish-core/src/resource_messages.cpp',
-    'redfish-core/src/task_messages.cpp',
     'redfish-core/src/event_log.cpp',
     'redfish-core/src/filesystem_log_watcher.cpp',
     'redfish-core/src/filter_expr_executor.cpp',
     'redfish-core/src/filter_expr_printer.cpp',
+    'redfish-core/src/heartbeat_messages.cpp',
     'redfish-core/src/redfish.cpp',
     'redfish-core/src/registries.cpp',
+    'redfish-core/src/resource_messages.cpp',
     'redfish-core/src/subscription.cpp',
+    'redfish-core/src/task_messages.cpp',
     'redfish-core/src/utils/dbus_utils.cpp',
     'redfish-core/src/utils/json_utils.cpp',
     'redfish-core/src/utils/time_utils.cpp',