diff --git a/modules/validations/outdated_tags.js b/modules/validations/outdated_tags.js
index 052601445..10eb4d44d 100644
--- a/modules/validations/outdated_tags.js
+++ b/modules/validations/outdated_tags.js
@@ -15,7 +15,7 @@ export function validationOutdatedTags() {
     // initialize name-suggestion-index matcher
     var nsiMatcher = matcher();
     nsiMatcher.buildMatchIndex(brands.brands);
-    var nsiKeys = ['amenity', 'shop', 'tourism', 'leisure'];
+    var nsiKeys = ['amenity', 'shop', 'tourism', 'leisure', 'office'];
 
 
     function oldTagIssues(entity, context) {