diff --git a/tests/functions/package.json b/tests/functions/package.json
index 351eada2..f8043446 100644
--- a/tests/functions/package.json
+++ b/tests/functions/package.json
@@ -8,7 +8,7 @@
 	"verbose": true,
     "testEnvironment": "node",
     "moduleNameMapper": {
-      "^(\\.{1,2}/.*)\\.js$": "<rootDir>/functions/$1"
+      "^(\\.{1,2}/.*)\\.js$": "../../functions/$1"
     }
   },
   "devDependencies": {