diff --git a/osx.md b/osx.md
index 03a27e004..9e94b3c3c 100644
--- a/osx.md
+++ b/osx.md
@@ -21,3 +21,8 @@ Auto-hide other windows on dock switch
     defaults delete com.apple.dock single-app
     killall Dock
 
+Flush DNS
+---------
+
+    dscacheutil -flushcache
+