diff --git a/lib/paths-cache.js b/lib/paths-cache.js
index 050cd5f..340c513 100644
--- a/lib/paths-cache.js
+++ b/lib/paths-cache.js
@@ -77,9 +77,9 @@ export default class PathsCache extends EventEmitter {
     this._fileWatchersByDirectory.forEach(async (watcher) => {
       await watcher.close()
     })
-    this._fileWatchersByDirectory = new Map()
-    this._filePathsByProjectDirectory = new Map()
-    this._filePathsByDirectory = new Map()
+    this._fileWatchersByDirectory.clear()
+    this._filePathsByProjectDirectory.clear()
+    this._filePathsByDirectory.clear()
     this._repositories = []
     if (this._projectWatcher) {
       this._projectWatcher.dispose()