diff --git a/src/yggdrasil/core.go b/src/yggdrasil/core.go
index 7b07794..2dd8f85 100644
--- a/src/yggdrasil/core.go
+++ b/src/yggdrasil/core.go
@@ -20,8 +20,8 @@ type Core struct {
 	admin       admin
 	searches    searches
 	multicast   multicast
-	tcp         *tcpInterface
-	udp         *udpInterface
+	tcp         tcpInterface
+	udp         udpInterface
 	log         *log.Logger
 	ifceExpr    []*regexp.Regexp // the zone of link-local IPv6 peers must match this
 }