diff --git a/ts/flexbuffers/bit-width-util.ts b/ts/flexbuffers/bit-width-util.ts
index acb3c96..3a295fd 100644
--- a/ts/flexbuffers/bit-width-util.ts
+++ b/ts/flexbuffers/bit-width-util.ts
@@ -1,4 +1,4 @@
-import { BitWidth } from './bit-width'
+import { BitWidth } from './bit-width.js'
 
 export function toByteWidth(bitWidth: BitWidth): number {
   return 1 << bitWidth;