diff --git a/libc/kernel/uapi/mtd/ubi-user.h b/libc/kernel/uapi/mtd/ubi-user.h
index 866fbd2..a1143bc 100644
--- a/libc/kernel/uapi/mtd/ubi-user.h
+++ b/libc/kernel/uapi/mtd/ubi-user.h
@@ -71,11 +71,11 @@
   __s16 name_len;
   __s8 padding2[4];
   char name[UBI_MAX_VOLUME_NAME + 1];
-} __packed;
+} __attribute__((__packed__));
 struct ubi_rsvol_req {
   __s64 bytes;
   __s32 vol_id;
-} __packed;
+} __attribute__((__packed__));
 struct ubi_rnvol_req {
   __s32 count;
   __s8 padding1[12];
@@ -85,24 +85,24 @@
     __s8 padding2[2];
     char name[UBI_MAX_VOLUME_NAME + 1];
   } ents[UBI_MAX_RNVOL];
-} __packed;
+} __attribute__((__packed__));
 struct ubi_leb_change_req {
   __s32 lnum;
   __s32 bytes;
   __s8 dtype;
   __s8 padding[7];
-} __packed;
+} __attribute__((__packed__));
 struct ubi_map_req {
   __s32 lnum;
   __s8 dtype;
   __s8 padding[3];
-} __packed;
+} __attribute__((__packed__));
 struct ubi_set_vol_prop_req {
   __u8 property;
   __u8 padding[7];
   __u64 value;
-} __packed;
+} __attribute__((__packed__));
 struct ubi_blkcreate_req {
   __s8 padding[128];
-} __packed;
+} __attribute__((__packed__));
 #endif