diff --git a/http/announce_test.go b/http/announce_test.go
index 92644f6..4826068 100644
--- a/http/announce_test.go
+++ b/http/announce_test.go
@@ -29,17 +29,17 @@ func TestPublicAnnounce(t *testing.T) {
 
 	// Add one seeder.
 	peer := basePeer("peer1", true)
-	expected := baseResponse(1, 0, []interface{}{})
+	expected := baseResponse(1, 0, bencode.List{})
 	checkResponse(peer, expected, srv, t)
 
 	// Add another seeder.
 	peer = basePeer("peer2", true)
-	expected = baseResponse(2, 0, []interface{}{})
+	expected = baseResponse(2, 0, bencode.List{})
 	checkResponse(peer, expected, srv, t)
 
 	// Add a leecher.
 	peer = basePeer("peer3", false)
-	expected = baseResponse(2, 1, []interface{}{
+	expected = baseResponse(2, 1, bencode.List{
 		bencode.Dict{
 			"ip":      "127.0.0.1",
 			"peer id": "peer1",
@@ -62,7 +62,7 @@ func TestPublicAnnounce(t *testing.T) {
 
 	// Check seeders.
 	peer = basePeer("peer3", false)
-	expected = baseResponse(1, 1, []interface{}{
+	expected = baseResponse(1, 1, bencode.List{
 		bencode.Dict{
 			"ip":      "127.0.0.1",
 			"peer id": "peer2",
@@ -91,7 +91,7 @@ func basePeer(id string, seed bool) params {
 	}
 }
 
-func baseResponse(seeders, leechers int64, peers []interface{}) bencode.Dict {
+func baseResponse(seeders, leechers int64, peers bencode.List) bencode.Dict {
 	dict := bencode.Dict{
 		"complete":     seeders,
 		"incomplete":   leechers,
diff --git a/http/private_announce_test.go b/http/private_announce_test.go
index 654ff20..a2da243 100644
--- a/http/private_announce_test.go
+++ b/http/private_announce_test.go
@@ -138,7 +138,7 @@ func TestPrivateAnnounce(t *testing.T) {
 		"incomplete":   int64(2),
 		"interval":     int64(1800),
 		"min interval": int64(900),
-		"peers": []interface{}{
+		"peers": bencode.List{
 			bencode.Dict{
 				"ip":      "127.0.0.1",
 				"peer id": "-TR2820-l71jtqkl8xx1",
@@ -164,7 +164,7 @@ func TestPrivateAnnounce(t *testing.T) {
 		"incomplete":   int64(2),
 		"interval":     int64(1800),
 		"min interval": int64(900),
-		"peers": []interface{}{
+		"peers": bencode.List{
 			bencode.Dict{
 				"ip":      "127.0.0.1",
 				"peer id": "-TR2820-l71jtqkl8xx1",