diff --git a/man2/futex.2 b/man2/futex.2
index facdf60c9..3c17729ef 100644
--- a/man2/futex.2
+++ b/man2/futex.2
@@ -1130,22 +1130,22 @@ arguments are ignored.
 .TP
 .BR FUTEX_LOCK_PI2 " (since Linux 5.14)"
 .\" commit bf22a6976897977b0a3f1aeba6823c959fc4fdae
-This operation works similar to
-.BR FUTEX_LOCK_PI .
-The only difference is the
+This operation is the same as
+.BR FUTEX_LOCK_PI ,
+except that the clock against which
 .I timeout
-argument.
-.B FUTEX_LOCK_PI2
-has support for selectable clocks.
-.IP
-If
+is measured is selectable.
+By default, the (absolute) timeout specified in
 .I timeout
-is not NULL, the structure it points to specifies
-an absolute timeout.
-If
-.I timeout
-is NULL, the operation can block indefinitely.
-.IP
+is measured againt the
+.B CLOCK_MONOTONIC
+clock, but if the
+.B FUTEX_CLOCK_REALTIME
+flag is specified in
+.IR futex_op ,
+then the timeout is measured against the
+.B CLOCK_REALTIME
+clock.
 .\"
 .\""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
 .\"