diff --git a/nextcloud-aio-helm-chart/update-helm.sh b/nextcloud-aio-helm-chart/update-helm.sh
index f23d9572..9302154a 100755
--- a/nextcloud-aio-helm-chart/update-helm.sh
+++ b/nextcloud-aio-helm-chart/update-helm.sh
@@ -399,7 +399,7 @@ MAIL_DOMAIN:         # (not set by default): Set a different domain for the emai
 TALK_MAX_STREAM_BITRATE: "1048576"         # This allows to adjust the max stream bitrate of the talk hpb
 TALK_MAX_SCREEN_BITRATE: "2097152"         # This allows to adjust the max stream bitrate of the talk hpb
 
-IMAGE_MIRROR_PREFIX:          # Setting this allows you to pull Nextcloud images through a mirror registry.
+IMAGE_MIRROR_PREFIX:          # Setting this allows you to pull Nextcloud images through a mirror registry. It needs a trailing slash!
 NEXTCLOUD_IMAGE_ORG: nextcloud          # Setting this allows you to change the image's org name in case a different image needs to be used e.g. for compliance reasons.
 ALPINE_IMAGE_ORG:          # Setting this allows you to change the image's org name in case a different image needs to be used e.g. for compliance reasons.
 ADDITIONAL_CONFIG
diff --git a/nextcloud-aio-helm-chart/values.yaml b/nextcloud-aio-helm-chart/values.yaml
index 6591aae8..8977910a 100755
--- a/nextcloud-aio-helm-chart/values.yaml
+++ b/nextcloud-aio-helm-chart/values.yaml
@@ -68,6 +68,6 @@ MAIL_DOMAIN:         # (not set by default): Set a different domain for the emai
 TALK_MAX_STREAM_BITRATE: "1048576"         # This allows to adjust the max stream bitrate of the talk hpb
 TALK_MAX_SCREEN_BITRATE: "2097152"         # This allows to adjust the max stream bitrate of the talk hpb
 
-IMAGE_MIRROR_PREFIX:          # Setting this allows you to pull Nextcloud images through a mirror registry.
+IMAGE_MIRROR_PREFIX:          # Setting this allows you to pull Nextcloud images through a mirror registry. It needs a trailing slash!
 NEXTCLOUD_IMAGE_ORG: nextcloud          # Setting this allows you to change the image's org name in case a different image needs to be used e.g. for compliance reasons.
 ALPINE_IMAGE_ORG:          # Setting this allows you to change the image's org name in case a different image needs to be used e.g. for compliance reasons.