diff --git a/man2/fcntl.2 b/man2/fcntl.2
index 89230be50..d8e09247b 100644
--- a/man2/fcntl.2
+++ b/man2/fcntl.2
@@ -1677,8 +1677,8 @@ and
 .B F_SETOWN
 are specified in POSIX.1-2001.
 (To get their definitions, define either
-.BR _BSD_SOURCE ,
-or
+.\" .BR _BSD_SOURCE ,
+.\" or
 .BR _XOPEN_SOURCE
 with the value 500 or greater, or
 .BR _POSIX_C_SOURCE