diff --git a/src/conf.c b/src/conf.c
index 740c7f4..c003627 100644
--- a/src/conf.c
+++ b/src/conf.c
@@ -903,6 +903,7 @@ static HANDLE_FUNC (handle_listen)
                if (conf->listen_addrs == NULL) {
                        log_message(LOG_WARNING, "Could not create a list "
                                    "of listen addresses.");
+                       safefree(arg);
                        return -1;
                }
         }