diff --git a/ext/resindvd/rsnwrappedbuffer.c b/ext/resindvd/rsnwrappedbuffer.c
index 6e2579c670..516cf352c3 100644
--- a/ext/resindvd/rsnwrappedbuffer.c
+++ b/ext/resindvd/rsnwrappedbuffer.c
@@ -132,6 +132,7 @@ rsn_wrappedbuffer_unwrap_and_unref (RsnWrappedBuffer * wrap_buf)
   g_return_val_if_fail (wrap_buf->wrapped_buffer != NULL, NULL);
 
   buf = gst_buffer_ref (wrap_buf->wrapped_buffer);
+  buf = gst_buffer_make_metadata_writable (buf);
 
   /* Copy changed metadata back to the wrapped buffer from the wrapper,
    * except the the read-only flag and the caps. */