diff --git a/man5/filesystems.5 b/man5/filesystems.5
index b74793697..9c11eb83b 100644
--- a/man5/filesystems.5
+++ b/man5/filesystems.5
@@ -79,12 +79,17 @@ offers the best performance (in terms of speed and CPU usage) of
 the filesystems supported under Linux.
 .TP
 .B ext3
-is a journaling version of the ext2 filesystem.
+is a journaling version of the
+.B ext2
+filesystem.
 It is easy to
-switch back and forth between ext2 and ext3.
+switch back and forth between
+.BR ext2 " and " ext3 .
 .TP
 .B ext4
-is a set of upgrades to ext3 including substantial performance and
+is a set of upgrades to
+.B ext3
+including substantial performance and
 reliability enhancements,
 plus large increases in volume, file, and directory size limits.
 .TP
@@ -125,7 +130,8 @@ sacrificing compatibility with DOS.
 .TP
 .B vfat
 is an extended DOS filesystem used by Microsoft Windows95 and Windows NT.
-vfat adds the capability to use long filenames under the MSDOS filesystem.
+.B vfat
+adds the capability to use long filenames under the MSDOS filesystem.
 .TP
 .B ntfs
 replaces Microsoft Window's FAT filesystems (VFAT, FAT32).