diff --git a/spec/fixtures/packages/package-with-config-defaults/index.coffee b/spec/fixtures/packages/package-with-config-defaults/index.coffee
index 5e0b1eed6..554c6c5eb 100644
--- a/spec/fixtures/packages/package-with-config-defaults/index.coffee
+++ b/spec/fixtures/packages/package-with-config-defaults/index.coffee
@@ -1,3 +1,5 @@
 module.exports =
   configDefaults:
     numbers: { one: 1, two: 2 }
+
+  activate: -> # no-op