diff --git a/roles/mediawiki/defaults/main.yml b/roles/mediawiki/defaults/main.yml
index aa695a65c..22cd060ad 100644
--- a/roles/mediawiki/defaults/main.yml
+++ b/roles/mediawiki/defaults/main.yml
@@ -4,7 +4,7 @@
 # All above are set in: github.com/iiab/iiab/blob/master/vars/default_vars.yml
 # If nec, change them by editing /etc/iiab/local_vars.yml prior to installing!
 
-mediawiki_major_version: 1.40    # "1.35" also works
+mediawiki_major_version: "1.40"    # "1.40" quotes nec if trailing zero
 mediawiki_minor_version: 0
 mediawiki_version: "{{ mediawiki_major_version }}.{{ mediawiki_minor_version }}"