diff --git a/packages/babel-helper-bindify-decorators/README.md b/packages/babel-helper-bindify-decorators/README.md
index 3660161657..a8bbd11cd9 100644
--- a/packages/babel-helper-bindify-decorators/README.md
+++ b/packages/babel-helper-bindify-decorators/README.md
@@ -1,5 +1,9 @@
 # @babel/helper-bindify-decorators
 
+## API
+```javascript
+declare export default bindifyDecorators(decorators: Array<NodePath>);
+```
 ## Usage
 
 TODO