diff --git a/playbooks/roles/dokuwiki/files/mime.local.conf b/playbooks/roles/dokuwiki/files/mime.local.conf
new file mode 100644
index 0000000..66d6072
--- /dev/null
+++ b/playbooks/roles/dokuwiki/files/mime.local.conf
@@ -0,0 +1,4 @@
+# See here: https://www.dokuwiki.org/mime
+
+# Allow stl files.
+stl     !model/stl
diff --git a/playbooks/roles/dokuwiki/tasks/main.yml b/playbooks/roles/dokuwiki/tasks/main.yml
index ff5a3d1..664f159 100644
--- a/playbooks/roles/dokuwiki/tasks/main.yml
+++ b/playbooks/roles/dokuwiki/tasks/main.yml
@@ -33,3 +33,12 @@
     owner: "{{ dokuwiki__nginx_user }}"
     group: "{{ dokuwiki__nginx_user }}"
     mode: "0755"
+
+- name: Allow more mime types to be uploaded
+  become: true
+  ansible.builtin.copy:
+    src: mime.local.conf
+    dest: /var/www/dokuwiki/conf/mime.local.conf
+    owner: root
+    group: root
+    mode: "0644"