diff --git a/docs/guide/installation.md b/docs/guide/installation.md
index 1b87684c8..700851386 100644
--- a/docs/guide/installation.md
+++ b/docs/guide/installation.md
@@ -111,7 +111,7 @@ if (process.env.NODE_ENV === 'development') {
 }
 ```
 
-**host** - is an optional argument that tells your application where devtools middleware server is running, if you debug you app on your computer you don't have to set this (the default is `http://localhost`), but if you want to debug your app on mobile devices, you might want to pass your local IP (e.g. `http://192.168.1.12`).
+**host** - is an optional argument that tells your application where devtools middleware server is running, if you debug your app on your computer you don't have to set this (the default is `http://localhost`), but if you want to debug your app on mobile devices, you might want to pass your local IP (e.g. `http://192.168.1.12`).
 
 **port** - is an optional argument that tells your application on what port devtools middleware server is running. If you use proxy server, you might want to set it to `null` so the port won't be added to connection URL.