diff --git a/docs/koji/bootstrapping.md b/docs/koji/bootstrapping.md
index 3504b0f1e7038c4fe685e55a41cddbb34d4fa208..eb59837617c25dbfde812d26683f43583cdffac3 100644
--- a/docs/koji/bootstrapping.md
+++ b/docs/koji/bootstrapping.md
@@ -348,6 +348,9 @@ Additionally, `cern-linuxsupport-access`, `phonebook` and `useraddcern` are inst
 as part of the [CERN functional tests](https://gitlab.cern.ch/linuxsupport/testing/cern_centos_functional_tests/-/blob/master/tests/cern_basic/1_yum_installs.sh)
 (which will run against the Docker image to validate it), so they have to be built now.
 
+`epel-release` may be needed by the rpmci Docker images, if it exists and makes sense
+for your new distro.
+
 ## Create tag for openafs
 
 We need a tag for the openafs kernel modules, we can create it using the