connection.go | 10 +++++++++-

diff --git a/connection.go b/connection.go
index c5c6c95743132debd5daec1457a04678b846c943..1d99664af7ab8b1652a5a27e804a53fbabcbf34d 100644
--- a/connection.go
+++ b/connection.go
@@ -975,7 +975,7 @@ 	piece.unpendChunkIndex(chunkIndex(req.chunkSpec, t.chunkSize))
 
 	// Cancel pending requests for this chunk.
 	for c := range t.conns {
-		c.updateRequests()
+		c.postCancel(req)
 	}
 
 	cl.mu.Unlock()
@@ -1103,3 +1103,11 @@ }
 func (c *connection) tickleWriter() {
 	c.writerCond.Broadcast()
 }
+
+func (c *connection) postCancel(r request) bool {
+	if !c.deleteRequest(r) {
+		return false
+	}
+	c.Post(makeCancelMessage(r))
+	return true
+}