diff --git a/src/resources/renderer/index.js b/src/resources/renderer/index.js
index 7703c25..d3b3d26 100644
--- a/src/resources/renderer/index.js
+++ b/src/resources/renderer/index.js
@@ -1,3 +1,5 @@
+import Blockly from 'blockly/core'
+
 class CustomConstantProvider extends Blockly.zelos.ConstantProvider {
     init() {
         super.init()