diff --git a/TypeScript/test/mocha.opts b/TypeScript/test/mocha.opts
index bf3868c8..7f3499f7 100644
--- a/TypeScript/test/mocha.opts
+++ b/TypeScript/test/mocha.opts
@@ -1,4 +1,4 @@
 --compilers ts-node/register
 --require source-map-support/register
 --recursive
-test/**/*.ts
+test/**/*.spec.ts