diff --git a/man2/ioctl_fslabel.2 b/man2/ioctl_fslabel.2
index c597e934c..30435e1e9 100644
--- a/man2/ioctl_fslabel.2
+++ b/man2/ioctl_fslabel.2
@@ -36,7 +36,7 @@ If a filesystem supports online label manipulation, these
 .BR ioctl (2)
 operations can be used to get or set the filesystem label for the filesystem
 on which
-.B fd
+.I fd
 resides.
 The
 .B FS_IOC_SETFSLABEL