diff --git a/misc-utils/findmnt.8 b/misc-utils/findmnt.8
index b6d80f095..2b5262083 100644
--- a/misc-utils/findmnt.8
+++ b/misc-utils/findmnt.8
@@ -137,6 +137,8 @@ available for umount and move actions
 .B OLD-OPTIONS
 available for umount and remount actions
 .RE
+.IP "\fB\-P, \-\-pairs\fP"
+Use key="value" output format.
 .IP "\fB\-r, \-\-raw\fP"
 Use raw output format.
 .IP "\fB\-a, \-\-ascii\fP"