diff --git a/public/javascripts/application.js b/public/javascripts/application.js
index ac2d5f8b0..491b27404 100644
--- a/public/javascripts/application.js
+++ b/public/javascripts/application.js
@@ -467,7 +467,7 @@ function displayTabsButtons() {
         numHidden++;
       }
     });
-    var bw = $(el).parents('div.tabs-buttons').outerWidth(true);
+    var bw = $(el).find('div.tabs-buttons').outerWidth(true);
     if ((tabsWidth < el.width() - bw) && (lis.length === 0 || lis.first().is(':visible'))) {
       el.find('div.tabs-buttons').hide();
     } else {