diff --git a/cms/templates/course_outline.html b/cms/templates/course_outline.html
index 8ddf22e58d..aee0ab435d 100644
--- a/cms/templates/course_outline.html
+++ b/cms/templates/course_outline.html
@@ -52,7 +52,7 @@ from contentstore.utils import reverse_usage_url
         <li class="action action-dismiss">
           <a href="#" class="button dismiss-button" data-dismiss-link='${notification_dismiss_url}'>
             <i class="icon icon-remove-sign"></i>
-            <span class="button-copy">${_("Dimiss")}</span>
+            <span class="button-copy">${_("Dismiss")}</span>
           </a>
         </li>
       </ul>
diff --git a/cms/templates/js/mock/mock-course-rerun-notification.underscore b/cms/templates/js/mock/mock-course-rerun-notification.underscore
index 12c5bcab68..42fdd571d6 100644
--- a/cms/templates/js/mock/mock-course-rerun-notification.underscore
+++ b/cms/templates/js/mock/mock-course-rerun-notification.underscore
@@ -15,7 +15,7 @@
                 <li class="action action-dismiss">
                     <a href="#" class="button dismiss-button" data-dismiss-link="dummy_dismiss_url">
                         <i class="icon icon-remove-sign"></i>
-                        <span class="button-copy">Dimiss</span>
+                        <span class="button-copy">Dismiss</span>
                     </a>
                 </li>
             </ul>