diff --git a/src/croc/croc.go b/src/croc/croc.go
index 73932138..84534e66 100644
--- a/src/croc/croc.go
+++ b/src/croc/croc.go
@@ -295,6 +295,7 @@ func (c *Client) Send(options TransferOptions) (err error) {
 		log.Debugf("banner: %s", banner)
 		if err != nil {
 			err = errors.Wrap(err, fmt.Sprintf("could not connect to %s", c.Options.RelayAddress))
+			log.Debug(err)
 			return
 		}
 		log.Debugf("connection established: %+v", conn)