diff --git a/fl2.patch b/fl2.patch
index 0059b10..bcd6410 100644
--- a/fl2.patch
+++ b/fl2.patch
@@ -1,3 +1,8 @@
+From: Jan Engelhardt <jengelh@inai.de>
+Date: 2018-10-16 14:29:56.900427855 +0200
+
+Make the build work with fluidsynth 2.x.
+
 ---
  src/sound/mididevices/music_fluidsynth_mididevice.cpp |    5 ++++-
  1 file changed, 4 insertions(+), 1 deletion(-)