diff --git a/gst/rtmp2/rtmp/rtmpconnection.c b/gst/rtmp2/rtmp/rtmpconnection.c
index 02d3e80ac4..ec41ea1ebc 100644
--- a/gst/rtmp2/rtmp/rtmpconnection.c
+++ b/gst/rtmp2/rtmp/rtmpconnection.c
@@ -1064,6 +1064,21 @@ gst_rtmp_connection_send_ping_response (GstRtmpConnection * connection,
       gst_rtmp_message_new_user_control (&uc));
 }
 
+void
+gst_rtmp_connection_set_chunk_size (GstRtmpConnection * connection,
+    guint32 chunk_size)
+{
+  GstRtmpProtocolControl pc = {
+    .type = GST_RTMP_MESSAGE_TYPE_SET_CHUNK_SIZE,
+    .param = chunk_size,
+  };
+
+  g_return_if_fail (GST_IS_RTMP_CONNECTION (connection));
+
+  gst_rtmp_connection_queue_message (connection,
+      gst_rtmp_message_new_protocol_control (&pc));
+}
+
 void
 gst_rtmp_connection_request_window_size (GstRtmpConnection * connection,
     guint32 window_ack_size)
diff --git a/gst/rtmp2/rtmp/rtmpconnection.h b/gst/rtmp2/rtmp/rtmpconnection.h
index f4c4b96748..f7e78ce6f9 100644
--- a/gst/rtmp2/rtmp/rtmpconnection.h
+++ b/gst/rtmp2/rtmp/rtmpconnection.h
@@ -81,6 +81,8 @@ void gst_rtmp_connection_expect_command (GstRtmpConnection * connection,
     GstRtmpCommandCallback response_command, gpointer user_data,
     guint32 stream_id, const gchar * command_name);
 
+void gst_rtmp_connection_set_chunk_size (GstRtmpConnection * connection,
+    guint32 chunk_size);
 void gst_rtmp_connection_request_window_size (GstRtmpConnection * connection,
     guint32 window_ack_size);