diff --git a/haos-sbfspot/build.yaml b/haos-sbfspot/build.yaml
index 6508613..c8a7e1e 100644
--- a/haos-sbfspot/build.yaml
+++ b/haos-sbfspot/build.yaml
@@ -13,7 +13,7 @@ labels:
   org.opencontainers.image.source: "https://github.com/habuild"
   org.opencontainers.image.licenses: "Apache License 2.0"
 codenotary:
-  signer: !secret cassign
+  signer: "!secret cassign"
   base_image: notary@home-assistant.io
 args:
   TEMPIO_VERSION: "2021.09.0"