diff --git a/.woodpecker.yml b/.woodpecker.yml
index d4edb3a..a430136 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -21,7 +21,7 @@ pipeline:
 
   docker-build:
     when:
-      - event: [ tag ]
+      - event: [ "tag" ]
     image: docker:latest
     volumes:
       - /var/run/docker.sock:/var/run/docker.sock