diff --git a/src/backends/meta-monitor-config-manager.h b/src/backends/meta-monitor-config-manager.h
index 86756a7e3..192d91536 100644
--- a/src/backends/meta-monitor-config-manager.h
+++ b/src/backends/meta-monitor-config-manager.h
@@ -198,4 +198,11 @@ gboolean meta_verify_monitors_config (MetaMonitorsConfig *config,
                                       MetaMonitorManager *monitor_manager,
                                       GError            **error);
 
+
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaMonitorConfig, meta_monitor_config_free)
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaLogicalMonitorConfig,
+                               meta_logical_monitor_config_free)
+G_DEFINE_AUTOPTR_CLEANUP_FUNC (MetaMonitorsConfigKey,
+                               meta_monitors_config_key_free)
+
 #endif /* META_MONITOR_CONFIG_MANAGER_H */