diff --git a/nix/scripts/list-helm-containers.sh b/nix/scripts/list-helm-containers.sh
index df27aeaee..23408cd34 100644
--- a/nix/scripts/list-helm-containers.sh
+++ b/nix/scripts/list-helm-containers.sh
@@ -30,7 +30,10 @@ function optionally_complain() {
 while IFS= read -r chart; do
   echo "Running helm template on chart ${chart}…" >&2
 
-  helm template "$chart" \
+  helm template --debug "$chart" \
+  --set secrets.zrestSecret=emptyString \
+  --set federate.dtls.tls.key=emptyString \
+  --set federate.dtls.tls.crt=emptyString \
     $( [[ -f ./values/$(basename $chart)/prod-values.example.yaml ]] && echo "-f ./values/$(basename $chart)/prod-values.example.yaml" ) \
     $( [[ -f ./values/$(basename $chart)/prod-secrets.example.yaml ]] && echo "-f ./values/$(basename $chart)/prod-secrets.example.yaml" ) \
     | yq -r '..|.image? | select(.)' | optionally_complain | sort -u