diff --git a/circle.yml b/circle.yml
index 4ca8290..32b6526 100644
--- a/circle.yml
+++ b/circle.yml
@@ -7,6 +7,10 @@ dependencies:
         - sudo apt-get install -qq g++-4.8
         - sudo update-alternatives --install /usr/bin/g++ g++ /usr/bin/g++-4.8 90
         - sudo apt-get install -qq xorg-dev
+        - sudo apt-get install ninja-build
+
+database:
+    override:
 
 test:
     override: