diff --git a/test/core/index.js b/test/core/index.js
index 8530131..7d159d7 100755
--- a/test/core/index.js
+++ b/test/core/index.js
@@ -17,6 +17,7 @@
 require('./util');
 require('./Plane');
 require('./Point');
+require('./Polygon');
 require('./ObservablePoint');
 require('./Matrix');
 require('./Rectangle');