diff --git a/.woodpecker.yml b/.woodpecker.yml
index 292792c..328ca88 100644
--- a/.woodpecker.yml
+++ b/.woodpecker.yml
@@ -3,7 +3,7 @@ pipeline:
     image: gitnet.fr/deblan/mkdocs
     environments:
     commands:
-      - echo 'site_url: https://doc.murph-project.org/' >> mkdocs.yml
+      - echo "site_url\: https://doc.murph-project.org/" >> mkdocs.yml
       - mkdocs build
   deploy:
     image: eeacms/rsync