diff --git a/app/assets/javascripts/discourse/templates/post.js.handlebars b/app/assets/javascripts/discourse/templates/post.js.handlebars
index 82d3dae86..78a1e8e77 100644
--- a/app/assets/javascripts/discourse/templates/post.js.handlebars
+++ b/app/assets/javascripts/discourse/templates/post.js.handlebars
@@ -28,7 +28,7 @@
         </div>
       {{/unless}}
       {{#if wiki}}
-        <div {{action editPost this}} class="wiki"><i class="fa fa-pencil-square-o fa-3x"></i></div>
+      <div {{action editPost this}} class="wiki" title="{{i18n post.wiki.about}}"><i class="fa fa-pencil-square-o fa-3x"></i></div>
       {{/if}}
     </div>
 
diff --git a/config/locales/client.en.yml b/config/locales/client.en.yml
index c44a87d78..c0cff0e15 100644
--- a/config/locales/client.en.yml
+++ b/config/locales/client.en.yml
@@ -1034,6 +1034,9 @@ en:
         no_value: "No, keep"
         yes_value: "Yes, abandon"
 
+      wiki:
+        about: "this post is a wiki; anyone can edit it"
+
       archetypes:
         save: 'Save Options'