diff --git a/source/tsconfig.json b/source/tsconfig.json
index 8c93ef5..42aa823 100644
--- a/source/tsconfig.json
+++ b/source/tsconfig.json
@@ -8,6 +8,7 @@
     "moduleResolution": "node",
     "experimentalDecorators": true,
     "skipLibCheck": true,
+    "allowJs": true,
     "esModuleInterop": true,
     "allowSyntheticDefaultImports": true,
     "sourceMap": true,