diff --git a/man2/mprotect.2 b/man2/mprotect.2
index 9cc375364..05efc2728 100644
--- a/man2/mprotect.2
+++ b/man2/mprotect.2
@@ -48,9 +48,7 @@ mprotect, pkey_mprotect \- set protection on a region of memory
 .fi
 .SH DESCRIPTION
 .BR mprotect ()
-and
-.BR pkey_mprotect ()
-change protection for the calling process's memory page(s)
+changes protection for the calling process's memory page(s)
 containing any part of the address range in the
 interval [\fIaddr\fP,\ \fIaddr\fP+\fIlen\fP\-1].
 .I addr
@@ -78,19 +76,31 @@ The memory can be modified.
 .B PROT_EXEC
 The memory can be executed.
 .PP
+Like
+.BR mprotect (),
+.BR pkey_mprotect ()
+changes the protection on the pages specified by
+.IR addr
+and
+.IR len .
+The
 .I pkey
-is the protection key to assign to the memory.
-A pkey must be allocated with
+argument specifies the protection key (see
+.BR pkey (7))
+to assign to the memory.
+The protection key must be allocated with
 .BR pkey_alloc (2)
 before it is passed to
 .BR pkey_mprotect ().
+For an example of the use of this system call, see
+.BR pkey (7).
 .SH RETURN VALUE
 On success,
 .BR mprotect ()
 and
 .BR pkey_mprotect ()
 return zero.
-On error, \-1 is returned, and
+On error, these system calls return \-1, and
 .I errno
 is set appropriately.
 .SH ERRORS
@@ -107,7 +117,10 @@ to mark it
 .B EINVAL
 \fIaddr\fP is not a valid pointer,
 or not a multiple of the system page size.
-Or: \fIpkey\fP has not been allocated with
+.TP
+.BR EINVAL
+.RB ( pkey_mprotect ())
+\fIpkey\fP has not been allocated with
 .BR pkey_alloc (2)
 .\" Or: both PROT_GROWSUP and PROT_GROWSDOWN were specified in 'prot'.
 .TP
@@ -191,7 +204,7 @@ has been set.
 Applications should be careful when mixing use of
 .BR mprotect ()
 and
-.BR pkey_mprotect () .
+.BR pkey_mprotect ().
 On x86, when
 .BR mprotect ()
 is used with
@@ -213,7 +226,9 @@ is equivalent to
 .SH EXAMPLE
 .\" sigaction.2 refers to this example
 .PP
-The program below allocates four pages of memory, makes the third
+The program below demonstrates the use of
+.BR mprotect ()
+The program allocates four pages of memory, makes the third
 of these pages read-only, and then executes a loop that walks upward
 through the allocated region modifying bytes.
 
@@ -290,5 +305,5 @@ main(int argc, char *argv[])
 .fi
 .SH SEE ALSO
 .BR mmap (2),
-.BR sysconf (3)
+.BR sysconf (3),
 .BR pkey (7)