diff --git a/README.md b/README.md
index 6da65dcf5..3fc299314 100644
--- a/README.md
+++ b/README.md
@@ -153,7 +153,7 @@ $ brook ssclient -l 127.0.0.1:8080 -s server_address:port -p password --http
 #### Download [Brook.app.zip](https://github.com/txthinking/brook/releases/download/v20170516/Brook.app.zip) for MacOS (amd64) [Version: 20170516] [China Mirror](https://dn-txthinking.qbox.me/init/Brook.app.zip)
 
 * Need MacOS version >= 10.12
-* If MacOS notice it is from an unidentified developer, then go `System Preferences` -> `Security & Privacy`, click Open Anyway
+* If MacOS prompts it is from an unidentified developer, then go `System Preferences` -> `Security & Privacy`, click Open Anyway
 * You may prefer to copy Brook.app to Application folder
 * Follow this [pac white list](https://github.com/txthinking/pac) auto proxy rule