diff --git a/UI/WebServerResources/js/Mailer/MailboxesController.js b/UI/WebServerResources/js/Mailer/MailboxesController.js
index dc98a1169..b1049540a 100644
--- a/UI/WebServerResources/js/Mailer/MailboxesController.js
+++ b/UI/WebServerResources/js/Mailer/MailboxesController.js
@@ -55,6 +55,9 @@
     function showAdvancedSearch(path) {
       vm.showingAdvancedSearch = true;
       vm.search.mailbox = path;
+      // Close sidenav on small devices
+      if ($mdMedia('xs'))
+        $mdSidenav('left').close();
     }
 
     function hideAdvancedSearch() {