diff --git a/NostrStreamer/Controllers/SRSController.cs b/NostrStreamer/Controllers/SRSController.cs
index 7ea136c..035a7be 100644
--- a/NostrStreamer/Controllers/SRSController.cs
+++ b/NostrStreamer/Controllers/SRSController.cs
@@ -38,7 +38,7 @@ public class SrsController : Controller
                 App = appSplit[0],
                 Variant = appSplit.Length > 1 ? appSplit[1] : "",
                 ClientId = req.ClientId!,
-                StreamId = req.StreamId!,
+                StreamId = req.StreamId ?? req.ClientId!,
                 StreamKey = req.Stream
             });
 
diff --git a/docker-compose.yaml b/docker-compose.yaml
index 7b762be..6642eab 100644
--- a/docker-compose.yaml
+++ b/docker-compose.yaml
@@ -11,7 +11,7 @@ services:
       - "9003:8080"
       - "9004:8000"
   srs-edge:
-    image: ossrs/srs:5
+    image: ossrs/srs:4
     volumes:
       - "./docker/srs-edge.conf:/usr/local/srs/conf/srs.conf"
     ports: