diff --git a/.woodpecker/build.yaml b/.woodpecker/build.yaml
index c27a527..93d043e 100644
--- a/.woodpecker/build.yaml
+++ b/.woodpecker/build.yaml
@@ -12,7 +12,7 @@ steps:
     settings:
       repo: *repo
       platforms: *platforms
-      tag: ${CI_COMMIT_REF/ref/heads//}-${CI_COMMIT_SHA:0:8}
+      tag: ${CI_COMMIT_REF/ref\/heads\//}-${CI_COMMIT_SHA:0:8}
       logins:
         - registry: https://registry.mareshq.com
           username: