diff --git a/man2/pipe.2 b/man2/pipe.2
index 8a2fb46c5..780f3b142 100644
--- a/man2/pipe.2
+++ b/man2/pipe.2
@@ -82,7 +82,9 @@ Using this flag saves extra calls to
 to achieve the same result.
 .TP
 .B O_CLOEXEC
-Set the close-on-exec flag on the two new file descriptors.
+Set the close-on-exec
+.BR ( FD_CLOEXEC )
+flag on the two new file descriptors.
 See the description of the same flag in
 .BR open (2)
 for reasons why this may be useful.