diff --git a/packages/preferences/package.json b/packages/preferences/package.json
index ba1a95190bb2bc..b51571bc870e51 100644
--- a/packages/preferences/package.json
+++ b/packages/preferences/package.json
@@ -26,7 +26,6 @@
 	"main": "build/index.js",
 	"module": "build-module/index.js",
 	"react-native": "src/index",
-	"types": "build-types",
 	"sideEffects": false,
 	"dependencies": {
 		"@babel/runtime": "^7.16.0",
diff --git a/packages/preferences/src/store/actions.js b/packages/preferences/src/store/actions.js
index 7fcedd49d35297..10b5b45567a7fc 100644
--- a/packages/preferences/src/store/actions.js
+++ b/packages/preferences/src/store/actions.js
@@ -49,12 +49,12 @@ export function setDefaults( scope, defaults ) {
 }
 
 /** @typedef {() => Promise<Object>} WPPreferencesPersistenceLayerGet */
-/** @typedef {(*) => void} WPPreferencesPersistenceLayerSet */
+/** @typedef {(Object) => void} WPPreferencesPersistenceLayerSet */
 /**
  * @typedef WPPreferencesPersistenceLayer
  *
  * @property {WPPreferencesPersistenceLayerGet} get An async function that gets data from the persistence layer.
- * @property {WPPreferencesPersistenceLayerSet} set A  function that sets data in the persistence layer.
+ * @property {WPPreferencesPersistenceLayerSet} set A function that sets data in the persistence layer.
  */
 
 /**