diff --git a/man4/null.4 b/man4/null.4
index f1c44f968..8c1322dce 100644
--- a/man4/null.4
+++ b/man4/null.4
@@ -49,4 +49,5 @@ programs will act strangely.
 .I /dev/zero
 .SH "SEE ALSO"
 .BR chown (1),
-.BR mknod (1)
+.BR mknod (1),
+.BR full (4)