diff --git a/public_mediawiki/LocalSettings.php b/public_mediawiki/LocalSettings.php
index 4fc7e14..bef90d6 100755
--- a/public_mediawiki/LocalSettings.php
+++ b/public_mediawiki/LocalSettings.php
@@ -191,6 +191,10 @@ $wgGroupPermissions['user']['upload_by_url'] = true;
 $wgGroupPermissions['*']['editwidgets'] = false;
 $wgGroupPermissions['sysop']['editwidgets'] = true;
 
+# allow admins and mods to delete revisions
+$wgGroupPermissions['sysop']['deleterevision'] = true;
+$wgGroupPermissions['sysop']['deletelogentry'] = true;
+
 # SSO config
 # necessary to allow admin user(s) to login
 $wgPluggableAuth_EnableLocalLogin = true;