diff --git a/roles/1-prep/templates/iiab-expand-rootfs.service b/roles/1-prep/templates/iiab-expand-rootfs.service
index 1d29e4b90..0756d8151 100644
--- a/roles/1-prep/templates/iiab-expand-rootfs.service
+++ b/roles/1-prep/templates/iiab-expand-rootfs.service
@@ -2,6 +2,8 @@
 Description=Root Filesystem Auto-Expander
 DefaultDependencies=no
 After=systemd-remount-fs.service
+# 2022-08-08: While dphys-swapfile.service doesn't exist on Ubuntu, Mint
+# and pure Debian, the following line may still serve a purpose on RasPiOS:
 Before=dphys-swapfile.service
 
 [Service]