diff --git a/ansible/roles/microk8s/tasks/microk8s/install.yml b/ansible/roles/microk8s/tasks/microk8s/install.yml
index 0977b47..af35146 100644
--- a/ansible/roles/microk8s/tasks/microk8s/install.yml
+++ b/ansible/roles/microk8s/tasks/microk8s/install.yml
@@ -19,7 +19,7 @@
           - aescbc:
               keys:
               - name: k8s-crypto
-                secret: {{ microk8s_encryption_secret }}
+                secret: {{ microk8s_encryption_secret | b64encode }}
           - identity: {}
     dest: "{{ microk8s_encryption_cfg }}"
     mode: "0600"