diff --git a/scripts/h5peditor.js b/scripts/h5peditor.js
index aea16b9b5e2947a92dda832205bbca421b9934ac..c88e1186c7b7109d10e2513733ced29dbf1ebb85 100644
--- a/scripts/h5peditor.js
+++ b/scripts/h5peditor.js
@@ -283,6 +283,7 @@ ns.resetLoadedLibraries = function () {
   H5PIntegration.loadedJs = [];
   ns.loadedCallbacks = [];
   ns.libraryLoaded = {};
+  ns.libraryCache = {};
 };
 
 /**