diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index 86ed1b90ac5..91b75070985 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -2,11 +2,15 @@
 
 # XXX present but broken: ip_mroute_mod
 
+.if exists(${.CURDIR}/../crypto) && !defined(NOCRYPT)
+_randomdev=	randomdev
+.endif
+
 SUBDIR=	3dfx accf_data accf_http agp aha amr an aue \
 	ccd cd9660 coda cue dc fdesc fxp if_disc if_ef \
 	if_ppp if_sl if_tun ipfilter ipfw ispfw joy kernfs kue \
 	md mfs mii mlx msdos ncp netgraph nfs ntfs nullfs \
-	nwfs oldcard pccard pcic portal procfs randomdev \
+	nwfs oldcard pccard pcic portal procfs ${_randomdev} \
 	rl rp sf sis sk sn sound ste syscons ti tl twe tx \
 	udbp ugen uhid ukbd ulpt umapfs umass umodem ums union urio usb \
 	vinum vn vpo vr wb wx xl