diff --git a/src/applications/dashboard/paneltype/PhabricatorDashboardTabsPanelType.php b/src/applications/dashboard/paneltype/PhabricatorDashboardTabsPanelType.php
--- a/src/applications/dashboard/paneltype/PhabricatorDashboardTabsPanelType.php
+++ b/src/applications/dashboard/paneltype/PhabricatorDashboardTabsPanelType.php
@@ -85,10 +85,12 @@
     $rename_uri = id(new PhutilURI($rename_uri))
       ->replaceQueryParam('contextPHID', $context_phid);
 
-    $selected = 0;
-
     $key_list = array_keys($config);
 
+    // In the future we may persist which panel was selected.
+    // At the moment we have always selected the first one.
+    $selected = (string)head($key_list);
+
     $next_keys = array();
     $prev_keys = array();
     for ($ii = 0; $ii < count($key_list); $ii++) {
@@ -96,6 +98,7 @@
       $prev_keys[$key_list[$ii]] = idx($key_list, $ii - 1);
     }
 
+    // Note that $idx can be something like "0", "1" or "asdasd98".
     foreach ($config as $idx => $tab_spec) {
       $panel_id = idx($tab_spec, 'panelID');
       $subpanel = idx($panels, $panel_id);
@@ -111,7 +114,7 @@
         $name = pht('Unnamed Tab');
       }
 
-      $is_selected = (string)$idx === (string)$selected;
+      $is_selected = (string)$idx === $selected;
 
       $tab_view = id(new PHUIListItemView())
         ->setHref('#')
@@ -261,6 +264,8 @@
     // TODO: Maybe we should persist which panel the user selected, so it
     // remains selected across page loads.
 
+    // Note that $idx can be something like "0", "1" or "asdasd98".
+
     $content = array();
     $panel_list = array();
     $no_headers = PhabricatorDashboardPanelRenderingEngine::HEADER_MODE_NONE;
@@ -282,7 +287,7 @@
         $panel_content = pht('(Invalid Panel)');
       }
 
-      $is_selected = (string)$idx === (string)$selected;
+      $is_selected = (string)$idx === $selected;
 
       $content_id = celerity_generate_unique_node_id();