diff --git a/gst-libs/gst/webrtc/datachannel.c b/gst-libs/gst/webrtc/datachannel.c
index 99cc4f4ae1..358eb12be4 100644
--- a/gst-libs/gst/webrtc/datachannel.c
+++ b/gst-libs/gst/webrtc/datachannel.c
@@ -24,6 +24,8 @@
  * @title: GstWebRTCDataChannel
  *
  * <https://www.w3.org/TR/webrtc/#rtcdatachannel>
+ *
+ * Since: 1.18
  */
 
 #ifdef HAVE_CONFIG_H
diff --git a/gst-libs/gst/webrtc/datachannel.h b/gst-libs/gst/webrtc/datachannel.h
index be2379c936..79b536f5b5 100644
--- a/gst-libs/gst/webrtc/datachannel.h
+++ b/gst-libs/gst/webrtc/datachannel.h
@@ -41,6 +41,8 @@ GType gst_webrtc_data_channel_get_type(void);
 
 /**
  * GstWebRTCDataChannel:
+ *
+ * Since: 1.18
  */
 struct _GstWebRTCDataChannel
 {
@@ -63,6 +65,11 @@ struct _GstWebRTCDataChannel
   gpointer                         _padding[GST_PADDING];
 };
 
+/**
+ * GstWebRTCDataChannelClass:
+ *
+ * Since: 1.18
+ */
 struct _GstWebRTCDataChannelClass
 {
   GObjectClass        parent_class;