diff --git a/app/views/layouts/_header.html.erb b/app/views/layouts/_header.html.erb
index 347bce27c6..dd78ed6db7 100644
--- a/app/views/layouts/_header.html.erb
+++ b/app/views/layouts/_header.html.erb
@@ -9,7 +9,7 @@
 
 <nav id="header" class="navbar navbar-expand-md navbar-dark bg-dark fixed-top">
     <!-- ||| menu, displayed for mobile: -->
-  <a class="navbar-brand ml-lg-5" id="brand" href="<%= root_path %>">Public Lab</a>
+  <a data-toggle="tooltip" title="Home" data-placement="bottom" class="navbar-brand ml-lg-5" id="brand" href="<%= root_path %>">Public Lab</a>
   <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#header-navbar-collapse">
     <span class="fa fa-bars fa-white"></span>
   </button>