diff --git a/lib/views/course_view/components/stream_card.dart b/lib/views/course_view/components/stream_card.dart
index 605d32c..ad50ffb 100644
--- a/lib/views/course_view/components/stream_card.dart
+++ b/lib/views/course_view/components/stream_card.dart
@@ -208,7 +208,7 @@ class StreamCardState extends ConsumerState<StreamCard> {
       ),
       padding: const EdgeInsets.all(5),
       child: Text(
-        formatDuration(widget.stream.duration),
+        formatDuration(widget.stream.end.toDateTime().difference(widget.stream.start.toDateTime()).inMinutes),
         style: themeData.textTheme.labelSmall?.copyWith(
           fontSize: 12,
           color: Colors.white,