diff --git a/router/router.go b/router/router.go
index 7a61cdf..3421186 100644
--- a/router/router.go
+++ b/router/router.go
@@ -405,6 +405,7 @@ func (r *proxyRouter) handleConnection(c net.Conn) {
 			log.Printf("Error dialing backend %s: %v\n", dstHost.String(), err)
 			return
 		}
+		defer d.Close()
 		err = req.Write(d)
 		if err != nil {
 			log.Printf("Error requesting backend %s: %v\n", dstHost.String(), err)