diff --git a/applications/system/updater/util/update_task_worker_backup.c b/applications/system/updater/util/update_task_worker_backup.c
index 95d9306b9..f817ea013 100644
--- a/applications/system/updater/util/update_task_worker_backup.c
+++ b/applications/system/updater/util/update_task_worker_backup.c
@@ -13,7 +13,7 @@
 #include <toolbox/tar/tar_archive.h>
 #include <toolbox/crc32_calc.h>
 
-#define FIRSTBOOT_FLAG_PATH CFG_PATH("firstboot.flag")
+#define FIRSTBOOT_FLAG_PATH CFG_PATH("momentum_firstboot.flag")
 
 #define TAG "UpdWorkerBackup"
 
@@ -205,6 +205,10 @@ static bool update_task_post_update(UpdateTask* update_task) {
             update_task_set_progress(update_task, UpdateTaskStageSplashscreenInstall, 0);
             FuriString* tmp_path;
             tmp_path = furi_string_alloc_set(update_task->update_path);
+            storage_common_rename(
+                update_task->storage,
+                CFG_PATH("firstboot.flag"), // Poor naming, shouldn't be generic for all FW
+                FIRSTBOOT_FLAG_PATH);
             if(storage_common_stat(update_task->storage, FIRSTBOOT_FLAG_PATH, NULL) ==
                FSE_NOT_EXIST) {
                 File* file = storage_file_alloc(update_task->storage);