diff --git a/.github/workflows/make-dist.yml b/.github/workflows/make-dist.yml
index 3647078..5cfe02c 100644
--- a/.github/workflows/make-dist.yml
+++ b/.github/workflows/make-dist.yml
@@ -46,6 +46,7 @@ jobs:
         
     - name: Upload to CTAN (release)
       uses: paolobrasolin/ctan-submit-action@v1
+      if: startsWith(github.ref, 'refs/tags/')
       with: 
         action: upload
         file_path: dist/photobook.zip