diff --git a/.github/workflows/default.yml b/.github/workflows/default.yml
index 791b3fa..d24a0a0 100644
--- a/.github/workflows/default.yml
+++ b/.github/workflows/default.yml
@@ -102,7 +102,7 @@ jobs:
 
       - uses: jiro4989/build-deb-action@v2
         with:
-          package: ${{ env.PROJ_PATH }}_${{ env.VER }}
+          package: ${{ env.PROJ_PATH }}-${{ env.VER }}
           package_root: .debpkg
           maintainer: ${{ env.EMAIL }}
           version: ${{ env.VER }} # refs/tags/v*.*.*