diff --git a/common/file-list.c b/common/file-list.c
index 8d61b76..eb469cf 100644
--- a/common/file-list.c
+++ b/common/file-list.c
@@ -92,6 +92,9 @@
 			case 'c':
 				flags |= FILE_LIST_FLAG_CREATE;
 				break;
+			case 'u':
+				flags |= FILE_LIST_FLAG_UBI;
+				break;
 			default:
 				pr_err("Unknown flag '%c'\n", *partstr);
 				return -EINVAL;
diff --git a/include/file-list.h b/include/file-list.h
index 1e02539..404d8d6 100644
--- a/include/file-list.h
+++ b/include/file-list.h
@@ -4,6 +4,7 @@
 #define FILE_LIST_FLAG_SAFE	(1 << 0)
 #define FILE_LIST_FLAG_READBACK	(1 << 1)
 #define FILE_LIST_FLAG_CREATE	(1 << 2)
+#define FILE_LIST_FLAG_UBI	(1 << 3)
 
 struct file_list_entry {
 	char *name;