diff --git a/common/js/src/index.ts b/common/js/src/index.ts
index 45746158..160fd26d 100644
--- a/common/js/src/index.ts
+++ b/common/js/src/index.ts
@@ -1,5 +1,6 @@
-import "./interfaces/augment-api"
-import "./interfaces/augment-types"
+import "./interfaces/augment-api.js"
+import "./interfaces/augment-types.js"
+import "./interfaces/types-lookup.js"
 
 export * from "./api"
 export * from "./pow"