diff --git a/etc/defaults/rc.conf b/etc/defaults/rc.conf
index 1be9afaef20..fe4b9140487 100644
--- a/etc/defaults/rc.conf
+++ b/etc/defaults/rc.conf
@@ -246,7 +246,7 @@ ipv6_router_flags=""		# Flags to IPv6 routing daemon.
 #ipv6_prefix_ep0="fec0:0000:0000:0003 fec0:0000:0000:0004"  # Examples for rtr.
 #ipv6_ifconfig_ed0="fec0:0:0:5::1 prefixlen 64"	# Sample manual assign entry
 #ipv6_ifconfig_ed0_alias0="fec0:0:0:5::2 prefixlen 64" # Sample alias entry.
-ipv6_default_interface=""	# Default output interface for scoped addrs.
+ipv6_default_interface="NO"	# Default output interface for scoped addrs.
 				# Now this works only for IPv6 link local
 				# multicast addrs.
 rtadvd_enable="NO"		# Set to YES to enable an IPv6 router