diff --git a/server/src/video.rs b/server/src/video.rs
index f189709..0a15e63 100644
--- a/server/src/video.rs
+++ b/server/src/video.rs
@@ -21,12 +21,17 @@ pub async fn spawn_camera(
          video/x-h264,stream-format=byte-stream,profile=baseline,level=4,\
          bitrate={max_bitrate_kbit}000 ! appsink name=sink emit-signals=true sync=false"
     );
-    let pipeline = gst::parse_launch(&desc)?.downcast::<gst::Pipeline>()?;
 
     let pipeline = gst::parse::launch(&desc)?
         .downcast::<gst::Pipeline>()
         .expect("pipeline down-cast");
 
+    let sink = pipeline
+        .by_name("sink")
+        .expect("appsink")
+        .dynamic_cast::<gst_app::AppSink>()
+        .expect("appsink downcast");
+
     let (tx, rx) = tokio::sync::mpsc::channel(256);
 
     sink.set_callbacks(