typo

diff --git a/how_to_get_the_programming_languages_running_on_your_computer.mdwn b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
index b30e639..b3c4d66 100644 (file)
--- a/how_to_get_the_programming_languages_running_on_your_computer.mdwn
+++ b/how_to_get_the_programming_languages_running_on_your_computer.mdwn
@@ -373,7 +373,7 @@ double-click and install.
     warning that its version of OPAM is broken, and not to use it. Here's how you can get (OCaml and) OPAM from a newer repository:
 
         sudo apt-get install -y software-properties-common
-        sudo apt-apt-repository -y ppa:avsm/ppa
+        sudo add-apt-repository -y ppa:avsm/ppa
         sudo apt-get update
         sudo apt-get install ocaml opam