diff --git a/src/gstreamer/gstlibcamerasrc.cpp b/src/gstreamer/gstlibcamerasrc.cpp
index 2c5c34c..4003a89 100644
--- a/src/gstreamer/gstlibcamerasrc.cpp
+++ b/src/gstreamer/gstlibcamerasrc.cpp
@@ -200,6 +200,11 @@ gst_libcamera_src_task_enter(GstTask *task, GThread *thread, gpointer user_data)
 			flow_ret = GST_FLOW_NOT_NEGOTIATED;
 			break;
 		}
+
+		/* Send an open segment event with time format. */
+		GstSegment segment;
+		gst_segment_init(&segment, GST_FORMAT_TIME);
+		gst_pad_push_event(srcpad, gst_event_new_segment(&segment));
 	}
 
 	{