diff --git a/circle.yml b/circle.yml
index 67330564..0f6cfd58 100644
--- a/circle.yml
+++ b/circle.yml
@@ -1,4 +1,6 @@
 machine:
+  services:
+    - docker
   post:
     - mkdir -p download
     - test -e download/$GODIST || curl -o download/$GODIST https://storage.googleapis.com/golang/$GODIST