diff --git a/Documentation/releases/checklist.md b/Documentation/releases/checklist.md
index f03f87d937..ad00ce8de7 100644
--- a/Documentation/releases/checklist.md
+++ b/Documentation/releases/checklist.md
@@ -68,6 +68,7 @@ be more frequent than was needed, so we scaled it back to twice a year.
 - [ ] Announce that the release tag is done on IRC
 - [ ] Update release notes with actual commit id, push to repo
 - [ ] Upload release files to web server
+- [ ] Upload crossgcc sources to web server
 - [ ] Update download page to point to files, push to repo
 - [ ] Write and publish blog post with release notes.
 - [ ] Update the topic in the irc channel that the release is done.
@@ -195,6 +196,22 @@ The downloads page is the official place to download the releases from, and it n
 
 Here is an example commit to change it: https://review.coreboot.org/#/c/19515/
 
+## Upload crossgcc sources
+Sometimes the source files for older revisions of
+crossgcc disappear. To deal with that we maintain a mirror at
+https://www.coreboot.org/releases/crossgcc-sources/ where we host the
+sources used by the crossgcc scripts that are part of coreboot releases.
+
+Run
+
+````
+% util/crossgcc/buildgcc -u
+````
+
+This will output the set of URLs that the script uses to download the
+sources. Download them yourself and copy them into the crossgcc-sources
+directory on the server.
+
 ## After the release is complete
 Post the release notes on https://blogs.coreboot.org