diff --git a/package.json b/package.json
index d32b9ac..d59a2ed 100644
--- a/package.json
+++ b/package.json
@@ -30,6 +30,6 @@
     "test": "npm run build:prod && NODE_ENV=production MAIN=dist/package/production jest --runInBand",
     "test:coverage": "npm run test:dev -- --coverage --json --outputFile=dist/jest/stats.json",
     "test:dev": "NODE_ENV=test jest --runInBand",
-    "test:debug": "DEBUG=\"$(basename $PWD),$(basename $PWD):*\" NODE_ENV=test node --inspect=9229 node_modules/jest/bin/jest.js --runInBand"
+    "test:debug": "DEBUG=\"$DEBUG,$(basename $PWD),$(basename $PWD):*\" NODE_ENV=test node --inspect=9229 node_modules/jest/bin/jest.js --runInBand"
   }
 }