diff --git a/.woodpecker/.base-os.yml b/.woodpecker/.base-os.yml
index 2545111..2c3b955 100644
--- a/.woodpecker/.base-os.yml
+++ b/.woodpecker/.base-os.yml
@@ -16,7 +16,7 @@ steps:
       context: "os-base/"
       auto_tag: "false"
       build_args: 
-        - "IMAGE_VERSION=debian-${DEBIAN_VERSION}"
+        - "IMAGE_VERSION=${DEBIAN_VERSION}"
         - "OTHERARG=foo"
           #      default_tag: "debian-${DEBIAN_VERSION}"
       tags: