diff --git a/lib/url.c b/lib/url.c
index 87b870113..567f1de90 100644
--- a/lib/url.c
+++ b/lib/url.c
@@ -4779,6 +4779,7 @@ static void reuse_conn(struct connectdata *old_conn,
   Curl_safefree(old_conn->passwd);
   Curl_safefree(old_conn->proxyuser);
   Curl_safefree(old_conn->proxypasswd);
+  Curl_safefree(old_conn->localdev);
 
   Curl_llist_destroy(old_conn->send_pipe, NULL);
   Curl_llist_destroy(old_conn->recv_pipe, NULL);