diff --git a/README b/README
index 3a327070c2..f93a0a0389 100644
--- a/README
+++ b/README
@@ -120,7 +120,7 @@ installing anything system-critical. Apple already did that.
 
 Let this be the last sudo you do for quite some time:
 
-    $ sudo chown -r `whoami`:staff /usr/local
+    $ sudo chown -R `whoami`:staff /usr/local
 
 I already have a bunch of junk in /usr/local
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