diff --git a/lib/sidebar.php b/lib/sidebar.php
index 3fa061f..1c1e9ca 100644
--- a/lib/sidebar.php
+++ b/lib/sidebar.php
@@ -41,6 +41,6 @@ class Roots_Sidebar {
   }
 
   private function check_page_template($page_template) {
-    return is_page_template($page_template);
+    return is_page_template($page_template) || Roots_Wrapping::$base . '.php' === $page_template;
   }
 }