config.go  | 2 ++
 torrent.go | 2 +-

diff --git a/config.go b/config.go
index 008a0ad0508a06680b9f104811bad2fbc9e39b4f..c0abb23ed908ff1607d44e6136826ec2945e9acd 100644
--- a/config.go
+++ b/config.go
@@ -27,6 +27,8 @@ 	DHTConfig dht.ServerConfig
 
 	// Never send chunks to peers.
 	NoUpload bool `long:"no-upload"`
+	// Disable uploading even when it isn't fair.
+	DisableAggressiveUpload bool `long:"disable-aggressive-upload"`
 	// Upload even after there's nothing in it for us. By default uploading is
 	// not altruistic, we'll upload slightly more than we download from each
 	// peer.
diff --git a/torrent.go b/torrent.go
index 3591467f0b9a9456a96d2e24f9cc2f5f1df45a96..0e4d00214b1446c56440fbeadf1021110b9efd45 100644
--- a/torrent.go
+++ b/torrent.go
@@ -1176,7 +1176,7 @@ 	}
 	if !cl.config.Seed {
 		return false
 	}
-	if t.needData() {
+	if cl.config.DisableAggressiveUpload && t.needData() {
 		return false
 	}
 	return true