diff --git a/layouts/_default/single.html b/layouts/_default/single.html
index 482b25291..e999f71a2 100644
--- a/layouts/_default/single.html
+++ b/layouts/_default/single.html
@@ -154,7 +154,9 @@ <h1>{{ .Page.Title }}</h1>
     </div>
   </div>
   <!--scroll back to top-->
-  <a id="scroll-to-top" class="btn"><i class="fas fa-chevron-circle-up"></i></a>
+  <a id="scroll-to-top" class="btn"  data-toggle="tooltip" data-placement="left" title="Scroll to top">
+    <i class="fas fa-chevron-circle-up"></i>
+  </a>
 </section>
 {{ end }}