diff --git a/core/includes/module.inc b/core/includes/module.inc
index cca2ef9..e751284 100644
--- a/core/includes/module.inc
+++ b/core/includes/module.inc
@@ -201,39 +201,6 @@ function system_list_reset() {
 }
 
 /**
- * Find dependencies any level deep and fill in required by information too.
- *
- * @param $files
- *   The array of filesystem objects used to rebuild the cache.
- *
- * @return
- *   The same array with the new keys for each module:
- *   - requires: An array with the keys being the modules that this module
- *     requires.
- *   - required_by: An array with the keys being the modules that will not work
- *     without this module.
- */
-function _module_build_dependencies($files) {
-  require_once DRUPAL_ROOT . '/core/includes/graph.inc';
-  foreach ($files as $filename => $file) {
-    $graph[$file->name]['edges'] = array();
-    if (isset($file->info['dependencies']) && is_array($file->info['dependencies'])) {
-      foreach ($file->info['dependencies'] as $dependency) {
-        $dependency_data = drupal_parse_dependency($dependency);
-        $graph[$file->name]['edges'][$dependency_data['name']] = $dependency_data;
-      }
-    }
-  }
-  drupal_depth_first_search($graph);
-  foreach ($graph as $module => $data) {
-    $files[$module]->required_by = isset($data['reverse_paths']) ? $data['reverse_paths'] : array();
-    $files[$module]->requires = isset($data['paths']) ? $data['paths'] : array();
-    $files[$module]->sort = $data['weight'];
-  }
-  return $files;
-}
-
-/**
  * Determine whether a given module exists.
  *
  * @param $module
diff --git a/core/modules/system/system.admin.inc b/core/modules/system/system.admin.inc
index aa2f98f..b97a36f 100644
--- a/core/modules/system/system.admin.inc
+++ b/core/modules/system/system.admin.inc
@@ -140,6 +140,14 @@ function system_themes_page() {
     $admin_theme_options[$theme->name] = $theme->info['name'];
     $theme->is_default = ($theme->name == $theme_default);
 
+    // Add notes to default and administration theme.
+    $theme->notes = array();
+    $theme->classes = array();
+    if ($theme->is_default) {
+      $theme->classes[] = 'theme-default';
+      $theme->notes[] = t('default theme');
+    }
+
     // Identify theme screenshot.
     $theme->screenshot = NULL;
     // Create a list which includes the current theme and all its base themes.
@@ -182,6 +190,16 @@ function system_themes_page() {
           'attributes' => array('title' => t('Settings for !theme theme', array('!theme' => $theme->info['name']))),
         );
       }
+
+      // Check for module dependency.
+      $theme->compatible = TRUE;
+      foreach ($theme->requires as $requires => $module) {
+        if (!module_exists($requires)) {
+          $theme->compatible = FALSE;
+          $theme->notes[] = t('@module <span class="admin-missing">missing</span>', array('@module' => drupal_ucfirst($module['name'])));
+        }
+      }
+
       if (!empty($theme->status)) {
         if (!$theme->is_default) {
           $theme->operations[] = array(
@@ -198,7 +216,7 @@ function system_themes_page() {
           );
         }
       }
-      else {
+      elseif ($theme->compatible) {
         $theme->operations[] = array(
           'title' => t('Enable'),
           'href' => 'admin/appearance/enable',
@@ -214,14 +232,6 @@ function system_themes_page() {
       }
     }
 
-    // Add notes to default and administration theme.
-    $theme->notes = array();
-    $theme->classes = array();
-    if ($theme->is_default) {
-      $theme->classes[] = 'theme-default';
-      $theme->notes[] = t('default theme');
-    }
-
     // Sort enabled and disabled themes into their own groups.
     $theme_groups[$theme->status ? 'enabled' : 'disabled'][] = $theme;
   }
diff --git a/core/modules/system/system.module b/core/modules/system/system.module
index f4261e1..6cbaccd 100644
--- a/core/modules/system/system.module
+++ b/core/modules/system/system.module
@@ -2326,6 +2326,39 @@ function system_get_info($type, $name = NULL) {
 }
 
 /**
+ * Find dependencies any level deep and fill in required by information too.
+ *
+ * @param $files
+ *   The array of filesystem objects used to rebuild the cache.
+ *
+ * @return
+ *   The same array with the new keys for each module:
+ *   - requires: An array with the keys being the modules that this module
+ *     requires.
+ *   - required_by: An array with the keys being the modules that will not work
+ *     without this module.
+ */
+function _system_build_dependencies($files) {
+  require_once DRUPAL_ROOT . '/core/includes/graph.inc';
+  foreach ($files as $filename => $file) {
+    $graph[$file->name]['edges'] = array();
+    if (isset($file->info['dependencies']) && is_array($file->info['dependencies'])) {
+      foreach ($file->info['dependencies'] as $dependency) {
+        $dependency_data = drupal_parse_dependency($dependency);
+        $graph[$file->name]['edges'][$dependency_data['name']] = $dependency_data;
+      }
+    }
+  }
+  drupal_depth_first_search($graph);
+  foreach ($graph as $module => $data) {
+    $files[$module]->required_by = isset($data['reverse_paths']) ? $data['reverse_paths'] : array();
+    $files[$module]->requires = isset($data['paths']) ? $data['paths'] : array();
+    $files[$module]->sort = $data['weight'];
+  }
+  return $files;
+}
+
+/**
  * Helper function to scan and collect module .info data.
  *
  * @return
@@ -2424,7 +2457,7 @@ function system_rebuild_module_data() {
     ksort($modules);
     system_get_files_database($modules, 'module');
     system_update_files_database($modules, 'module');
-    $modules = _module_build_dependencies($modules);
+    $modules = _system_build_dependencies($modules);
     $modules_cache = $modules;
   }
   return $modules_cache;
@@ -2572,6 +2605,7 @@ function system_rebuild_theme_data() {
   ksort($themes);
   system_get_files_database($themes, 'theme');
   system_update_files_database($themes, 'theme');
+  $themes = _system_build_dependencies($themes);
   return $themes;
 }
 
diff --git a/core/themes/bartik/bartik.info b/core/themes/bartik/bartik.info
index aab37a7..7dfd538 100644
--- a/core/themes/bartik/bartik.info
+++ b/core/themes/bartik/bartik.info
@@ -5,6 +5,8 @@ package = Core
 version = VERSION
 core = 8.x
 
+dependencies[] = system
+
 stylesheets[all][] = css/layout.css
 stylesheets[all][] = css/style.css
 stylesheets[all][] = css/colors.css