diff --git a/.mocharc.json b/.mocharc.json
index c661ff930..5fba8f9f2 100644
--- a/.mocharc.json
+++ b/.mocharc.json
@@ -7,6 +7,7 @@
     "./core/globals",
     "should",
     "should-sinon",
+    "mocha-clean",
     "./test/support/assertions/change",
     "./test/support/assertions/fileContents",
     "./test/support/assertions/pending",