diff --git a/core/includes/install.core.inc b/core/includes/install.core.inc
index 64c7c1e..e75d650 100644
--- a/core/includes/install.core.inc
+++ b/core/includes/install.core.inc
@@ -1563,8 +1563,15 @@ function install_select_language_form($form, &$form_state, $files = array()) {
   // Build a select list with language names in native language for the user
   // to choose from. And build a list of available languages for the browser
   // to select the language default from.
+  // Select lists based on all standard languages.
+  foreach ($standard_languages as $langcode => $language_names) {
+    $select_options[$langcode] = $language_names[1];
+    $browser_options[$langcode] = new Language(array(
+      'id' => $langcode,
+    ));
+  }
+  // Add languages based on language files in the translations directory.
   if (count($files)) {
-    // Select lists based on available language files.
     foreach ($files as $langcode => $uri) {
       $select_options[$langcode] = isset($standard_languages[$langcode]) ? $standard_languages[$langcode][1] : $langcode;
       $browser_options[$langcode] = new Language(array(
@@ -1572,17 +1579,9 @@ function install_select_language_form($form, &$form_state, $files = array()) {
       ));
     }
   }
-  else {
-    // Select lists based on all standard languages.
-    foreach ($standard_languages as $langcode => $language_names) {
-      $select_options[$langcode] = $language_names[1];
-      $browser_options[$langcode] = new Language(array(
-        'id' => $langcode,
-      ));
-    }
-  }
-
+  asort($select_options);
   $browser_langcode = language_from_browser($browser_options);
+
   $form['langcode'] = array(
     '#type' => 'select',
     '#title' => t('Choose language'),