--- css3pie.module
+++ (clipboard)
@@ -118,7 +118,7 @@
   if ($path_to_pie_js_file && variable_get('css3pie_css_use_js_mode') && $path_to_css3pie_js_file) {
     $pie_js_to_html_head = array(
       '#type' => 'markup',
-      '#markup' => '<!--[if lt IE 10]><script language="javascript" type="text/javascript" src="' . file_create_url($path_to_pie_js_file) . '"></script>' . PHP_EOL . '<script language="javascript" type="text/javascript" src="' . file_create_url('css3pie/css3pie.js') . '"></script><![endif]-->' . PHP_EOL,
+      '#markup' => '<!--[if lt IE 10]><script language="javascript" type="text/javascript" src="' . file_create_url($path_to_pie_js_file) . '"></script>' . PHP_EOL . '<script language="javascript" type="text/javascript" src="' . file_create_url($path_to_css3pie_js_file) . '"></script><![endif]-->' . PHP_EOL,
     );
 
     drupal_add_html_head($pie_js_to_html_head, 'css3pie');