diff --git a/action.yml b/action.yml
index d06dee9..fb6bdbd 100644
--- a/action.yml
+++ b/action.yml
@@ -46,6 +46,9 @@ runs:
         export TAG="${{ inputs.tag }}"
         if test -z "$TAG"; then
           export TAG="${{ github.ref_name }}"
+          # until https://code.forgejo.org/forgejo/runner/issues/9 is fixed
+          # trim refs/tags/
+          TAG=${TAG##refs/tags/}
         fi
         export TOKEN="${{ inputs.token }}"
         if test -z "$TOKEN"; then