diff --git a/entitycache.module b/entitycache.module
index 66366e0..bd4c648 100644
--- a/entitycache.module
+++ b/entitycache.module
@@ -212,3 +212,23 @@ function entitycache_user_logout($account) {
 function entitycache_user_login(&$edit, $account) {
   cache_clear_all($account->uid, 'cache_entity_user');
 }
+
+/**
+ * Workaround for update 7.x-1.3 and later breaking existing sites, since the
+ * class autoloader cannot find the classes previously defined in this file but
+ * now are moved into individual files under 'includes' folder.
+ *
+ * @see https://www.drupal.org/node/2441965#comment-10558568
+ */
+if (!class_exists('EntityCacheControllerHelper')) {
+  require_once __DIR__ . '/includes/entitycache.entitycachecontrollerhelper.inc';
+}
+if (!class_exists('EntityCacheDefaultEntityController')) {
+  require_once __DIR__ . '/includes/entitycache.defaultentitycontroller.inc';
+}
+if (!class_exists('EntityCacheNodeController')) {
+  require_once __DIR__ . '/includes/entitycache.node.inc';
+}
+if (!class_exists('EntityCacheUserController')) {
+  require_once __DIR__ . '/includes/entitycache.user.inc';
+}