diff --git a/libc/kernel/uapi/linux/idxd.h b/libc/kernel/uapi/linux/idxd.h
index c6d6985..a456352 100644
--- a/libc/kernel/uapi/linux/idxd.h
+++ b/libc/kernel/uapi/linux/idxd.h
@@ -38,6 +38,7 @@
   IDXD_SCMD_WQ_NO_SIZE = 0x800e0000,
   IDXD_SCMD_WQ_NO_PRIV = 0x800f0000,
   IDXD_SCMD_WQ_IRQ_ERR = 0x80100000,
+  IDXD_SCMD_WQ_USER_NO_IOMMU = 0x80110000,
 };
 #define IDXD_SCMD_SOFTERR_MASK 0x80000000
 #define IDXD_SCMD_SOFTERR_SHIFT 16