diff --git a/manifest.tmpl b/manifest.tmpl
index 8a71b34..4217204 100644
--- a/manifest.tmpl
+++ b/manifest.tmpl
@@ -2,7 +2,7 @@ image: xoxys/kanboard:{{#if build.tag}}{{trimPrefix "v" build.tag}}{{else}}lates
 {{#if build.tags}}
 tags:
 {{#each build.tags}}
-  - {{this}}
+  {{#if this}}- {{this}}{{/if}}
 {{/each}}
 {{/if}}
 manifests: