diff --git a/catalog/includes/application_bottom.php b/catalog/includes/application_bottom.php
index 62135a09a..a220336ec 100644
--- a/catalog/includes/application_bottom.php
+++ b/catalog/includes/application_bottom.php
@@ -21,7 +21,7 @@
     }
   }
 
-  if ( (GZIP_COMPRESSION == 'true') && ($ext_zlib_loaded == true) && ($ini_zlib_output_compression < 1) ) {
-      tep_gzip_output(GZIP_LEVEL);
+  if ( (GZIP_COMPRESSION == 'true') && (extension_loaded('zlib') == true) && (zlib.output_compression < 1) ) {
+    ob_end_flush();
   }
 ?>
diff --git a/catalog/includes/functions/gzip_compression.php b/catalog/includes/functions/gzip_compression.php
deleted file mode 100644
index fe692e2dd..000000000
--- a/catalog/includes/functions/gzip_compression.php
+++ /dev/null
@@ -1,47 +0,0 @@
-<?php
-/*
-  $Id$
-
-  osCommerce, Open Source E-Commerce Solutions
-  http://www.oscommerce.com
-
-  Copyright (c) 2003 osCommerce
-
-  Released under the GNU General Public License
-*/
-
-  function tep_check_gzip() {
-    if (headers_sent() || connection_aborted()) {
-      return false;
-    }
-
-    if (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'x-gzip') !== false) return 'x-gzip';
-
-    if (strpos($_SERVER['HTTP_ACCEPT_ENCODING'], 'gzip') !== false) return 'gzip';
-
-    return false;
-  }
-
-/* $level = compression level 0-9, 0=none, 9=max */
-  function tep_gzip_output($level = 5) {
-    if ($encoding = tep_check_gzip()) {
-      $contents = ob_get_contents();
-      ob_end_clean();
-
-      header('Content-Encoding: ' . $encoding);
-
-      $size = strlen($contents);
-      $crc = crc32($contents);
-
-      $contents = gzcompress($contents, $level);
-      $contents = substr($contents, 0, strlen($contents) - 4);
-
-      echo "\x1f\x8b\x08\x00\x00\x00\x00\x00";
-      echo $contents;
-      echo pack('V', $crc);
-      echo pack('V', $size);
-    } else {
-      ob_end_flush();
-    }
-  }
-?>