diff --git a/man2/open.2 b/man2/open.2
index c1b7b4b1a..22c98855e 100644
--- a/man2/open.2
+++ b/man2/open.2
@@ -1386,14 +1386,14 @@ and
 .BR O_DSYNC ,
 but not
 .BR O_RSYNC .
-(Somewhat incorrectly, glibc defines
+Somewhat incorrectly, glibc defines
 .BR O_RSYNC
 to have the same value as
-.BR O_SYNC .)
-.B O_RSYNC
-is also defined in Linux header file
-.B <asm/fcntl.h>
-on HP PA-RISC, but is not used.
+.BR O_SYNC .
+.RB ( O_RSYNC
+is defined in the Linux header file
+.I <asm/fcntl.h>
+on HP PA-RISC, but it is not used.)
 .PP
 .BR O_SYNC
 provides synchronized I/O