diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 9f9f39f..cbde8a0 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -81,7 +81,7 @@ build_debian:
   - sed -re 's$#!/usr/local/bin/python3.6$#!/usr/bin/python3.6$' -i matemat/usr/lib/matemat/matemat
   - find matemat -type f -exec chmod 0644 {} \;
   - find matemat -type d -exec chmod 755 {} \;
-  - chmod +x matemat/usr/lib/matemat/matemat
+  - chmod +x matemat/usr/lib/matemat/matemat matemat/DEBIAN/postinst matemat/DEBIAN/prerm matemat/DEBIAN/postrm
   - dpkg-deb --build matemat
   - mv matemat.deb "matemat_${MATEMAT_VERSION}-1_all.deb"
   - sudo -u nobody lintian "matemat_${MATEMAT_VERSION}-1_all.deb"