diff --git a/man/io_uring_enter.2 b/man/io_uring_enter.2
index 8c797716e..b7ae5302d 100644
--- a/man/io_uring_enter.2
+++ b/man/io_uring_enter.2
@@ -1262,6 +1262,27 @@ is a pointer to siginfo_t, if any, being filled in. See also
 .BR waitid(2)
 for the general description of the related system call. Available since 6.5.
 
+.TP
+.B BLOCK_URING_CMD_DISCARD
+Issue a discard command to the block device file.
+.I fd
+should point to a block device,
+.I addr
+is the offset in bytes to start the command from, and
+.I addr3
+should be set to the length of the discard in bytes.
+It is an asynchronous equivalent of
+.B BLOCK_URING_CMD_DISCARD.
+It allows multiple parallel discards as well as other operations,
+as a result it may result in races for the data on the disk, and it's the user's
+responsible to take care of it. Furthermore, we only do the best effort page
+cache invalidation, the user has to make sure there are no other inflight
+requests modifying or reading the range, otherwise it might lead to stale
+page cache and data inconsistencies.
+
+Available since 6.1*.
+
+
 .PP
 The
 .I flags