diff --git a/Doc/lib/libfcntl.tex b/Doc/lib/libfcntl.tex
index f2b6eeb..7c357e6 100644
--- a/Doc/lib/libfcntl.tex
+++ b/Doc/lib/libfcntl.tex
@@ -106,13 +106,13 @@
 import struct, fcntl, FCNTL
 
 file = open(...)
-rv = fcntl(file.fileno(), FCNTL.O_NDELAY, 1)
+rv = fcntl(file.fileno(), FCNTL.F_SETFL, FCNTL.O_NDELAY)
 
 lockdata = struct.pack('hhllhh', FCNTL.F_WRLCK, 0, 0, 0, 0, 0)
 rv = fcntl.fcntl(file.fileno(), FCNTL.F_SETLKW, lockdata)
 \end{verbatim}
 
-Note that in the first example the return value variable \code{rv} will
+Note that in the first example the return value variable \var{rv} will
 hold an integer value; in the second example it will hold a string
 value.  The structure lay-out for the \var{lockdata} variable is
 system dependent --- therefore using the \function{flock()} call may be