diff --git a/tests/check/elements/rtpbin_buffer_list.c b/tests/check/elements/rtpbin_buffer_list.c
index feb7c28790..252b65922d 100644
--- a/tests/check/elements/rtpbin_buffer_list.c
+++ b/tests/check/elements/rtpbin_buffer_list.c
@@ -131,6 +131,27 @@ create_rtp_packet_buffer (gconstpointer header, gint header_size,
   return buffer;
 }
 
+static void
+check_seqnum (GstBuffer * buffer, guint16 seqnum)
+{
+  GstMemory *memory;
+  GstMapInfo info;
+  gboolean ret;
+  guint16 current_seqnum;
+
+  fail_if (buffer == NULL);
+
+  memory = gst_buffer_get_memory (buffer, 0);
+  ret = gst_memory_map (memory, &info, GST_MAP_READ);
+  fail_if (ret == FALSE);
+
+  current_seqnum = info.data[2] << 8 | info.data[3];
+  fail_unless (current_seqnum == seqnum);
+
+  gst_memory_unmap (memory, &info);
+  gst_memory_unref (memory);
+}
+
 static void
 check_header (GstBuffer * buffer, guint index)
 {