diff --git a/man4/vcs.4 b/man4/vcs.4
index 3bacddd26..aebe8cfda 100644
--- a/man4/vcs.4
+++ b/man4/vcs.4
@@ -93,9 +93,9 @@ No
 .BR ioctl (2)
 requests are supported.
 .SH FILES
-/dev/vcs[0\-63]
+.I /dev/vcs[0\-63]
 .br
-/dev/vcsa[0\-63]
+.I /dev/vcsa[0\-63]
 .\" .SH AUTHOR
 .\" Andries Brouwer <aeb@cwi.nl>
 .SH VERSIONS