diff --git a/.gitlab-ci/build-toolbox-image.sh b/.gitlab-ci/build-toolbox-image.sh
index 9c0fb5e79..982e0f649 100755
--- a/.gitlab-ci/build-toolbox-image.sh
+++ b/.gitlab-ci/build-toolbox-image.sh
@@ -32,6 +32,7 @@ build_container() {
     gnome-console # can't do without *some* terminal
     flatpak-spawn # run host commands
     flatpak # for host apps
+    nautilus # FileChooser portal
     abattis-cantarell-fonts # system font
     gnome-backgrounds # no blank background!
   )