diff --git a/README.md b/README.md
index 079d03a3..5d16687f 100644
--- a/README.md
+++ b/README.md
@@ -84,7 +84,7 @@ cabal update
 cabal install virthualenv
 cd yesodweb
 virthualenv --name=yesod
-./virthualenv/bin/activate
+. .virthualenv/bin/activate
 ~~~
 
 #### individual cabal packages