diff --git a/generate_release.sh b/generate_release.sh
index b0a0c48..c0f78f8 100644
--- a/generate_release.sh
+++ b/generate_release.sh
@@ -7,4 +7,4 @@ echo 'will cite' | parallel --bibtex
 broadwayd :5 &
 GDK_BACKEND=broadway BROADWAY_DISPLAY=:5 bash tasks/build.sh -r -v -e --ignore-dependency-check
 
-tar -cvJf ~/output/aleta-`git log --pretty=format:%H -1`.tar.gz _build/aleta
+tar -cvzf ~/output/aleta-`git log --pretty=format:%H -1`.tar.gz _build/aleta