diff --git a/roles/mediawiki/tasks/install.yml b/roles/mediawiki/tasks/install.yml
index 085567fbf..d3783b2dc 100644
--- a/roles/mediawiki/tasks/install.yml
+++ b/roles/mediawiki/tasks/install.yml
@@ -18,7 +18,7 @@
   unarchive:
     src: "{{ downloads_dir }}/{{ mediawiki_src }}"
     dest: "{{ mediawiki_install_path }}"    # /library
-    owner: "{{ apache_user }}"
+    owner: "{{ apache_user }}"    # www-data on debuntu
     group: "{{ apache_user }}"
     mode: u+rw,g+r,o+r    # '0755' forced executable bits on files
     keep_newer: yes
@@ -31,7 +31,7 @@
 
 - name: Start MySQL systemd service ({{ mysql_service }}) so we can create db
   systemd:
-    name: "{{ mysql_service }}"
+    name: "{{ mysql_service }}"    # mariadb on debuntu
     state: started
 
 - name: Create MySQL database {{ mediawiki_db_name }}