diff --git a/ffmpeg-c99.patch b/ffmpeg-c99.patch
index cfecbd2..22b385d 100644
--- a/ffmpeg-c99.patch
+++ b/ffmpeg-c99.patch
@@ -1,3 +1,14 @@
+From: Filip Kastl <fkastl@opensuse.org>
+Date: Fri, 26 Jul 2024 14:39:42 +0000
+
+I based the package patch on this bug report (there's a patch in
+the comments)
+https://bugs.gentoo.org/936433
+
+and on these patches
+https://ffmpeg.org/pipermail/ffmpeg-devel/2023-December/318685.html
+http://git.videolan.org/?p=ffmpeg.git;a=commitdiff;h=5860a966d2fffbbda1af0014f0a4d37a21c4f2ca
+
 Index: ffmpeg-4.4.4/libavutil/hwcontext_vaapi.c
 ===================================================================
 --- ffmpeg-4.4.4.orig/libavutil/hwcontext_vaapi.c