diff --git a/homeassistant/components/generic/config_flow.py b/homeassistant/components/generic/config_flow.py
index aacf017eedd..8b9273b2e94 100644
--- a/homeassistant/components/generic/config_flow.py
+++ b/homeassistant/components/generic/config_flow.py
@@ -77,6 +77,7 @@ DEFAULT_DATA = {
     CONF_LIMIT_REFETCH_TO_URL_CHANGE: False,
     CONF_FRAMERATE: 2,
     CONF_VERIFY_SSL: True,
+    CONF_RTSP_TRANSPORT: "tcp",
 }
 
 SUPPORTED_IMAGE_TYPES = {"png", "jpeg", "gif", "svg+xml", "webp"}