diff --git a/src/index.ts b/src/index.ts
index c8cd4c7..b3e76b4 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -1,4 +1,3 @@
 import Measure from './measure'
 export { default as measureFrom } from './measureSelector'
-export { UnitKey } from './units/index'
 export default Measure