diff --git a/charts/flux-bootstrap/templates/known-hosts.yaml b/charts/flux-bootstrap/templates/known-hosts.yaml
index dc40b39..072c0d6 100644
--- a/charts/flux-bootstrap/templates/known-hosts.yaml
+++ b/charts/flux-bootstrap/templates/known-hosts.yaml
@@ -3,5 +3,5 @@
 metadata:
   name: known-hosts
   namespace: {{ .Release.Namespace }}
-data:
-  known_hosts: {{ printf "%s %s" .Values.repositoryHost .Values.repositoryHostPublicKey | toYaml | indent 2 }}
+binaryData:
+  known_hosts: {{ .Values.repositoryHostPublicKeys | b64enc }}
diff --git a/charts/flux-bootstrap/values.yaml b/charts/flux-bootstrap/values.yaml
index 4b5fca1..8221196 100644
--- a/charts/flux-bootstrap/values.yaml
+++ b/charts/flux-bootstrap/values.yaml
@@ -4,7 +4,7 @@
   pullPolicy: Always
 repositoryAddress: ""
 repositoryHost: ""
-positoryHostPublicKey: ""
+positoryHostPublicKeys: []
 repository:
   address: ssh://git@<host>/<org>/<repository>
   branch: master