diff --git a/app/assets/stylesheets/common/base/onebox.scss b/app/assets/stylesheets/common/base/onebox.scss
index caa8c57fb..d796bac92 100644
--- a/app/assets/stylesheets/common/base/onebox.scss
+++ b/app/assets/stylesheets/common/base/onebox.scss
@@ -295,6 +295,7 @@ aside.onebox.twitterstatus .onebox-body {
     color: #fff;
     background-color: rgba(0, 0, 0, 0.6);
     text-overflow: ellipsis;
+    max-width: 100%;
 
     .inner-box {
       padding-left: 10px;