diff --git a/RELEASE_NOTES.txt b/RELEASE_NOTES.txt
index ee44c6de1..83ad8acc4 100644
--- a/RELEASE_NOTES.txt
+++ b/RELEASE_NOTES.txt
@@ -31,6 +31,7 @@ New features since 5.3:
 News Relevant to Package Maintainers
 ------------------------------------
 In general:
+- To get the source code, either clone from git or use the tarball from http://rawtherapee.com/shared/source/ . Do not use the auto-generated GitHub release tarballs.
 - Requires GTK+ version >=3.16, though 3.22 is recommended.
 - RawTherapee 5 requires GCC-4.9 or higher, or Clang.
 - Do not use -ffast-math, it will not make RawTherapee faster but will introduce artifacts.