diff --git a/circle.yml b/circle.yml
index ce59ac97..adc9810b 100644
--- a/circle.yml
+++ b/circle.yml
@@ -8,6 +8,7 @@ dependencies:
     - "~/erlang"
 
   pre:
+    - sudo pip install autobahntestsuite
     - sudo apt-get install autoconf2.59
     - cd $HOME/bin && ln -s /usr/bin/autoconf2.59 autoconf
     - cd $HOME/bin && ln -s /usr/bin/autoheader2.59 autoheader