diff --git a/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_snapshot.c b/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_snapshot.c
index 89f960fc7e46ece101092f8ed6f0536e29c809e0..1fe3b59b7dd518741c90ee76ab67c59d85583d38 100644
--- a/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_snapshot.c
+++ b/interfaces/innerkits/fs_manager/libfs_dm/fs_dm_snapshot.c
@@ -120,6 +120,7 @@ static bool ParseStatusText(char *data, StatusInfo *processInfo)
     if (strcmp(processInfo->error, "Invalid") == 0 ||
         strcmp(processInfo->error, "Overflow") == 0 ||
         strcmp(processInfo->error, "Merge failed") == 0 ||
+        strcmp(processInfo->error, "Unknown") == 0 ||
         strcmp(processInfo->error, "") == 0) {
         BEGET_LOGW("processInfo->error is \"%s\"", processInfo->error);
         return true;