diff --git a/src/core/index.js b/src/core/index.js
index 2c85e1eda..fedcc0d26 100644
--- a/src/core/index.js
+++ b/src/core/index.js
@@ -6,6 +6,7 @@ import * as action from "./action";
 import * as behavior from "./behavior";
 import * as controllers from "./controller";
 import * as func from "./func";
+import * as structure from "./structure";
 import {StyleLoaderManager} from "./loader/loader.style";
 import "./h";
 import {ShowListener} from "./listener/listener.show";
@@ -39,4 +40,5 @@ Object.assign(BI, {
     ...func,
     StyleLoaderManager,
     ShowListener,
+    ...structure,
 });
diff --git a/src/core/structure/index.js b/src/core/structure/index.js
index 4495bf79e..263e41942 100644
--- a/src/core/structure/index.js
+++ b/src/core/structure/index.js
@@ -1,34 +1,3 @@
-import * as a1 from "./aes";
-import * as a2 from "./aspect";
-import * as a3 from "./base64";
-import * as a4 from "./cache";
-import * as a5 from "./cellSizeAndPositionManager";
-import * as a6 from "./heap";
-import * as a7 from "./linkedHashMap";
-import * as a8 from "./lru";
-import * as a9 from "./prefixIntervalTree";
-import * as a10 from "./queue";
-import * as a11 from "./sectionManager";
-import * as a12 from "./tree";
-import * as a13 from "./vector";
-
-Object.assign(BI, {
-    ...a1,
-    ...a2,
-    ...a3,
-    ...a4,
-    ...a5,
-    ...a6,
-    ...a7,
-    ...a8,
-    ...a9,
-    ...a10,
-    ...a11,
-    ...a12,
-    ...a13,
-});
-
-
 export * from "./aes";
 export * from "./aspect";
 export * from "./base64";