diff --git a/libc/kernel/uapi/mtd/mtd-abi.h b/libc/kernel/uapi/mtd/mtd-abi.h
index 6e26cae..aed2acc 100644
--- a/libc/kernel/uapi/mtd/mtd-abi.h
+++ b/libc/kernel/uapi/mtd/mtd-abi.h
@@ -30,7 +30,7 @@
 struct mtd_oob_buf {
   __u32 start;
   __u32 length;
-  unsigned char __user * ptr;
+  unsigned char  * ptr;
 };
 struct mtd_oob_buf64 {
   __u64 start;