diff --git a/.travis.yml b/.travis.yml
index a654ae1..868a153 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,3 +4,8 @@ jdk:
     - openjdk7
     - oraclejdk6
     - oraclejdk7
+
+# whitelist
+branches:
+  only:
+    - master