diff --git a/roles/calibre-web/tasks/install.yml b/roles/calibre-web/tasks/install.yml
index 3ed72cc9bc..5e1f669336 100644
--- a/roles/calibre-web/tasks/install.yml
+++ b/roles/calibre-web/tasks/install.yml
@@ -25,7 +25,7 @@
   package:
     name:
       - imagemagick
-      - python3-cryptography    # Required on Raspberry Pi OS
+      - python3-cryptography    # Required on Raspberry Pi OS (see iiab/calibre-web#260)
       - python3-netifaces
     state: present