diff --git a/accessible_content.admin.inc b/accessible_content.admin.inc
index ef3e7b7..db5540d 100644
--- a/accessible_content.admin.inc
+++ b/accessible_content.admin.inc
@@ -148,7 +148,7 @@ function accessible_cotnent_admin_install_guidelines_form_operation(&$context) {
 */
 function accessible_content_admin_update_tests_form_operation(&$context) {
   if (!$context['sandbox']['tests']) {
-    $file = fopen('sites/all/libraries/quail/quail/guidelines/translations/en.txt', 'r');
+    $file = fopen(libraries_get_path('quail') .'/quail/guidelines/translations/en.txt', 'r');
     while (($test = fgetcsv($file)) !== FALSE ) {
       $context['sandbox']['tests'][] = $test;
     }
@@ -328,7 +328,7 @@ function  _accessible_content_create_guidelines() {
         $node->uid = $user->uid;
         $node->title = $guideline[1];
         node_save($node);
-        require_once('sites/all/libraries/quail/quail/guidelines/'. strtolower($guideline[0]) .'.php');
+        require_once(libraries_get_path('quail') .'/quail/guidelines/'. strtolower($guideline[0]) .'.php');
         $FALSE = FALSE;
         $guideline_object = new $guideline[2]($FALSE, $FALSE, $FALSE);
         $guideline_tests = $guideline_object->getTests();
diff --git a/accessible_content.module b/accessible_content.module
index 245d321..acebc99 100644
--- a/accessible_content.module
+++ b/accessible_content.module
@@ -10,7 +10,7 @@
 *
 */
 function accessible_content_include_library() {
-  $result = @include_once('sites/all/libraries/quail/quail/quail.php');
+  $result = @include_once(libraries_get_path('quail') .'/quail/quail.php');
   if ($result) {
     module_load_include('inc', 'accessible_content', 'accessible_content.quail');
     module_load_include('inc', 'accessible_content', 'accessible_content.theme');
diff --git a/accessible_content.quail.inc b/accessible_content.quail.inc
index 097264a..008100f 100644
--- a/accessible_content.quail.inc
+++ b/accessible_content.quail.inc
@@ -130,7 +130,7 @@ class reportAccessibleContent extends quailReporter {
 *
 *
 */
-require_once('sites/all/libraries/quail/quail/reporters/reporter.demo.php');
+require_once(libraries_get_path('quail') .'/quail/reporters/reporter.demo.php');
 class reportAccessibleContentHighlight extends reportDemo {
 
   /**