diff --git a/linux-user/ioctls.h b/linux-user/ioctls.h
index b4bfb3ab6e..68f248d63f 100644
--- a/linux-user/ioctls.h
+++ b/linux-user/ioctls.h
@@ -51,6 +51,8 @@
      IOCTL(TIOCMIWAIT, 0, TYPE_INT)
      IOCTL(TIOCGICOUNT, IOC_R, MK_PTR(MK_STRUCT(STRUCT_serial_icounter_struct)))
 
+     IOCTL(KDGKBTYPE, IOC_W, MK_PTR(TYPE_CHAR))
+
      IOCTL(BLKROSET, IOC_W, MK_PTR(TYPE_INT))
      IOCTL(BLKROGET, IOC_R, MK_PTR(TYPE_INT))
      IOCTL(BLKRRPART, 0, TYPE_NULL)
diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index a442683b6d..4dbc66333d 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -212,6 +212,9 @@ struct target_pollfd {
     short revents;    /* returned events */
 };
 
+/* virtual terminal ioctls */
+#define TARGET_KDGKBTYPE       0x4b33
+
 /* Networking ioctls */
 #define TARGET_SIOCADDRT       0x890B          /* add routing table entry */
 #define TARGET_SIOCDELRT       0x890C          /* delete routing table entry */