diff --git a/jquery_update.module b/jquery_update.module
index 18932a3..d21da4b 100644
--- a/jquery_update.module
+++ b/jquery_update.module
@@ -215,8 +215,11 @@ function jquery_update_jquery_replace(&$javascript, $cdn, $path, $min, $version)
  *   The verison of jQuery to use.
  */
 function jquery_update_jquery_backup(&$javascript, $path, $min, $version) {
+  $js_path = url("{$path}/replace/jquery/{$version}/jquery{$min}.js", array(
+    'absolute' => TRUE,
+  ));
   $javascript['jquery']['js'][] = array(
-    'data' => 'window.jQuery || document.write("<script src=\'' . base_path() . $path . '/replace/jquery/'. $version . '/jquery' . $min . '.js\'>\x3C/script>")',
+    'data' => 'window.jQuery || document.write("<script src=\'' . $js_path . '\'>\x3C/script>")',
     'type' => 'inline',
     'group' => JS_LIBRARY,
     'weight' => -19.999999999,
@@ -291,8 +294,12 @@ function jquery_update_jqueryui_replace(&$javascript, $cdn, $path, $min) {
  */
 function jquery_update_jqueryui_backup(&$javascript, $path, $min) {
   $js_path = ($min == '.min') ? '/replace/ui/ui/minified/jquery-ui.min.js' : '/replace/ui/ui/jquery-ui.js';
+  $js_path = url("{$path}{$js_path}", array(
+    'absolute' => TRUE,
+  ));
+
   $javascript['ui']['js'][] = array(
-    'data' => 'window.jQuery.ui || document.write("<script src=\'' . base_path() . $path . $js_path . '\'>\x3C/script>")',
+    'data' => 'window.jQuery.ui || document.write("<script src=\'' . $js_path . '\'>\x3C/script>")',
     'type' => 'inline',
     'group' => JS_LIBRARY,
     'weight' => -10.999999999,