diff --git a/hmp-commands.hx b/hmp-commands.hx
index 9cea415..4f5a3fd 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -185,6 +185,8 @@
 submitted against the host device underlying the disk.  Once a drive has
 been deleted, the QEMU Block layer returns -EIO which results in IO
 errors in the guest for applications that are reading/writing to the device.
+These errors are always reported to the guest, regardless of the drive's error
+actions (drive options rerror, werror).
 ETEXI
 
     {