diff --git a/functions.php b/functions.php
index 208556f..3835777 100644
--- a/functions.php
+++ b/functions.php
@@ -10,7 +10,7 @@
  * @param string $subtitle
  * @param string $title
  */
-$error = function ($message, $subtitle = '', $title = '') {
+$sage_error = function ($message, $subtitle = '', $title = '') {
     $title = $title ?: __('Sage › Error', 'sage');
     $footer = '<a href="https://roots.io/sage/docs">roots.io/sage/docs</a>';
     $message = "<h1>{$title}<br><small>{$subtitle}</small></h1><p>{$message}</p><p>{$footer}</p>";
@@ -21,14 +21,14 @@ $error = function ($message, $subtitle = '', $title = '') {
  * Ensure compatible version of PHP is used
  */
 if (version_compare('5.6.4', phpversion(), '>=')) {
-    $error(__('You must be using PHP 5.6.4 or greater.', 'sage'), __('Invalid PHP version', 'sage'));
+    $sage_error(__('You must be using PHP 5.6.4 or greater.', 'sage'), __('Invalid PHP version', 'sage'));
 }
 
 /**
  * Ensure dependencies are loaded
  */
 if (!file_exists($composer = __DIR__.'/vendor/autoload.php') && !class_exists('Roots\\Sage\\Container')) {
-    $error(
+    $sage_error(
         __('You must run <code>composer install</code> from the Sage directory.', 'sage'),
         __('Autoloader not found.', 'sage')
     );
@@ -41,10 +41,10 @@ require_once $composer;
  * The mapped array determines the code library included in your theme.
  * Add or remove files to the array as needed. Supports child theme overrides.
  */
-array_map(function ($file) use ($error) {
+array_map(function ($file) use ($sage_error) {
     $file = "src/{$file}.php";
     if (!locate_template($file, true, true)) {
-        $error(sprintf(__('Error locating <code>%s</code> for inclusion.', 'sage'), $file), 'File not found');
+        $sage_error(sprintf(__('Error locating <code>%s</code> for inclusion.', 'sage'), $file), 'File not found');
     }
 }, ['helpers', 'setup', 'filters', 'admin']);