diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index c72ae1f5d..5270365b3 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -62,6 +62,7 @@ jobs:
           generate_release_notes: true
           files: |
             cryptomator-*.tar.gz.asc
+          fail_on_unmatched_files: true
           body: |-
             :construction: Work in Progress