Readme: Base build badge on master branch status

Inaccurate for it to go red when some speculative feature branch or PR
fails.

1 files changed, 1 insertions, 1 deletions

diff --git a/readme.markdown b/readme.markdown
index 56113a3..45fb9cb 100644
--- a/readme.markdown
+++ b/readme.markdown
@@ -1,4 +1,4 @@
-# xkbcat [![](https://img.shields.io/travis/anko/xkbcat.svg?style=flat-square)](https://travis-ci.org/anko/xkbcat) ![](https://img.shields.io/github/languages/code-size/anko/xkbcat?style=flat-square)
+# xkbcat [![](https://img.shields.io/travis/anko/xkbcat/master?style=flat-square)](https://travis-ci.org/anko/xkbcat) ![](https://img.shields.io/github/languages/code-size/anko/xkbcat?style=flat-square)
 
 Simple X11 keylogger.