diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -4,3 +4,5 @@ Cirno's Perfect Math Library
 Various useful bits of game math. 3D line intersections, ray casting, vectors, matrices, quaternions, etc.
 
 Intended to be used with LuaJIT and especially Love2D (Love3D, even) and Hate.
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+[![Build Status](https://travis-ci.org/excessive/cpml.svg?branch=master)](https://travis-ci.org/excessive/cpml)