diff --git a/src/core/foundation.js b/src/core/foundation.js
index bb731d8a3..66833d39e 100644
--- a/src/core/foundation.js
+++ b/src/core/foundation.js
@@ -16,4 +16,6 @@ if (typeof window !== "undefined") {
 }
 if (_global.BI == null) {
     _global.BI = {prepares: []};
+} else {
+    _global.BI.prepares = [];
 }
\ No newline at end of file