diff --git a/src/project.js b/src/project.js
index 4f95cf851..b99a60e85 100644
--- a/src/project.js
+++ b/src/project.js
@@ -347,7 +347,7 @@ class Project extends Model {
     })
 
     for (let path in this.watcherPromisesByPath) {
-      if (!this.rootDirectories.includes(path)) {
+      if (!this.rootDirectories.find(dir => dir.getPath() === path)) {
         this.watcherPromisesByPath[path].then(watcher => { watcher.dispose() })
       }
     }