diff --git a/js/h5p.js b/js/h5p.js
index 24d9846..16af37f 100644
--- a/js/h5p.js
+++ b/js/h5p.js
@@ -1482,7 +1482,7 @@ H5P.libraryFromString = function (library) {
  *   The full path to the library.
  */
 H5P.getLibraryPath = function (library) {
-  return H5PIntegration.url + '/libraries/' + library;
+  return (H5PIntegration.libraryUrl !== undefined ? H5PIntegration.libraryUrl + '/' : H5PIntegration.url + '/libraries/') + library;
 };
 
 /**