client_test.go        | 2 +-
 config.go             | 2 +-
 test/transfer_test.go | 9 +++++++++
 torrent.go            | 2 +-

diff --git a/client_test.go b/client_test.go
index 7c440a952912130be47069682bafd1f4c371b8b9..b73672dd0ab613259d9d25e2f036edb96dd2097a 100644
--- a/client_test.go
+++ b/client_test.go
@@ -612,7 +612,7 @@ 	var tts []*Torrent
 	ih := testutil.GreetingMetaInfo().HashInfoBytes()
 	cfg := TestingConfig()
 	cfg.DisableAcceptRateLimiting = true
-	cfg.dropDuplicatePeerIds = true
+	cfg.DropDuplicatePeerIds = true
 	for i := range iter.N(3) {
 		cl, err := NewClient(cfg)
 		require.NoError(t, err)
diff --git a/config.go b/config.go
index d3a3c06656e0f80e3b4407a3e9191ea1b8b32bfa..1c9be6ef40b6278012eb7049c705b07853bc3472 100644
--- a/config.go
+++ b/config.go
@@ -120,7 +120,7 @@
 	DisableAcceptRateLimiting bool
 	// Don't add connections that have the same peer ID as an existing
 	// connection for a given Torrent.
-	dropDuplicatePeerIds bool
+	DropDuplicatePeerIds bool
 
 	ConnTracker *conntrack.Instance
 
diff --git a/test/transfer_test.go b/test/transfer_test.go
index 74dd656e685bcf3df31f839e7afb8a119fe6bb26..30402793d963c3a26949b52594caed4e2166927a 100644
--- a/test/transfer_test.go
+++ b/test/transfer_test.go
@@ -217,6 +217,15 @@ 		// Can't readahead too far or the cache will thrash and drop data we
 		// thought we had.
 		Readahead:          readahead,
 		ExportClientStatus: true,
+
+		// These tests don't work well with more than 1 connection to the seeder.
+		ConfigureLeecher: ConfigureClient{
+			Config: func(cfg *torrent.ClientConfig) {
+				cfg.DropDuplicatePeerIds = true
+				//cfg.DisableIPv6 = true
+				//cfg.DisableUTP = true
+			},
+		},
 	})
 }
 
diff --git a/torrent.go b/torrent.go
index 1bf2211a0d8195db1a9120580c8544d9555f0576..9435fe63d2f89d808b37f7fe7a7155fc7316ecee 100644
--- a/torrent.go
+++ b/torrent.go
@@ -1560,7 +1560,7 @@ 	for c0 := range t.conns {
 		if c.PeerID != c0.PeerID {
 			continue
 		}
-		if !t.cl.config.dropDuplicatePeerIds {
+		if !t.cl.config.DropDuplicatePeerIds {
 			continue
 		}
 		if left, ok := c.hasPreferredNetworkOver(c0); ok && left {