diff --git a/limiter.go b/limiter.go
index c3d8951894f827b14e6a15204d9cef777bad9399..836edbc9f525c751965bb0dc7c49d08e39ac2073 100644
--- a/limiter.go
+++ b/limiter.go
@@ -166,5 +166,8 @@ func (dl *dialLimiter) executeDial(j *dialJob) {
 	select {
 	case j.resp <- dialResult{Conn: con, Addr: j.addr, Err: err}:
 	case <-j.ctx.Done():
+		if err == nil {
+			con.Close()
+		}
 	}
 }