diff --git a/.github/workflows/ccpp.yml b/.github/workflows/ccpp.yml
index 9916f934b..3b11a4985 100644
--- a/.github/workflows/ccpp.yml
+++ b/.github/workflows/ccpp.yml
@@ -103,7 +103,7 @@ jobs:
     - name: check libstdc++ ABI
       run: .github/scripts/Linux/check_cxx_abi.sh 3.4.21 1.3.9 bin/* lib/ultragrid/*
     - name: Create AppImage
-      run: APPIMAGE=`data/scripts/Linux-AppImage/create-appimage.sh` && mv $APPIMAGE UltraGrid-$VERSION-x86_64.AppImage
+      run: APPIMAGE=`data/scripts/Linux-AppImage/create-appimage.sh https://github.com/$GITHUB_REPOSITORY/releases/download/$TAG/UltraGrid-$VERSION-x86_64.AppImage.zsync` && mv $APPIMAGE UltraGrid-$VERSION-x86_64.AppImage
     - name: Upload NDI Build
       id: upload-ndi
       if: github.ref == 'refs/heads/ndi-build'
diff --git a/data/scripts/Linux-AppImage/create-appimage.sh b/data/scripts/Linux-AppImage/create-appimage.sh
index 4e0ad9b3f..fd2c3c87a 100755
--- a/data/scripts/Linux-AppImage/create-appimage.sh
+++ b/data/scripts/Linux-AppImage/create-appimage.sh
@@ -68,7 +68,11 @@ if [ -n "$appimage_key" ]; then
 fi
 
 wget --no-verbose https://github.com/AppImage/AppImageKit/releases/download/12/appimagetool-x86_64.AppImage -O appimagetool && chmod 755 appimagetool
-./appimagetool --sign --comp gzip -u "zsync|https://github.com/${GITHUB_REPOSITORY-CESNET/UltraGrid}/releases/download/nightly/UltraGrid-nightly-x86_64.AppImage.zsync" $APPDIR $APPNAME
+UPDATE_INFORMATION=
+if [ $# -ge 1 ]; then
+        UPDATE_INFORMATION="-u zsync|$1"
+fi
+./appimagetool --sign --comp gzip $UPDATE_INFORMATION $APPDIR $APPNAME
 )
 
 echo $APPNAME