diff --git a/components.html b/components.html
index d49e153f54..c30ea31a8a 100644
--- a/components.html
+++ b/components.html
@@ -1819,22 +1819,22 @@ body { padding-bottom: 70px; }
       <div class="row">
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
           </a>
         </div>
         <div class="col-lg-3">
           <a href="#" class="thumbnail">
-            <img data-src="holder.js/100%x180" alt="">
+            <img data-src="holder.js/100%x180" alt="Generic placeholder thumbnail">
           </a>
         </div>
       </div>
@@ -1843,7 +1843,7 @@ body { padding-bottom: 70px; }
 <div class="row">
   <div class="col-lg-3">
     <a href="#" class="thumbnail">
-      <img data-src="holder.js/100%x180" alt="">
+      <img data-src="holder.js/100%x180" alt="...">
     </a>
   </div>
   ...