diff --git a/package.json b/package.json
index a43cd3b..f254e2c 100644
--- a/package.json
+++ b/package.json
@@ -29,7 +29,7 @@
     "prepublish": "npm run build && npm run typedoc && npm run test",
     "typedoc": "typedoc --out docs --target es6 --theme minimal --mode file src",
     "lint": "tslint -c tslint.json --project .",
-    "pretest": "npm run clean && npm run lint && npm run debug-build",
+    "pretest": "npm run clean && npm run lint && npm run build",
     "test": "nyc mocha --expose-gc --ui mocha-typescript test/test_**.ts",
     "coverage": "nyc report --reporter=text-lcov | coveralls",
     "watch": "mocha-typescript-watch",
diff --git a/test/test_native.ts b/test/test_native.ts
index 85c5dd0..86587e7 100644
--- a/test/test_native.ts
+++ b/test/test_native.ts
@@ -76,6 +76,6 @@ export class TestNative {
     }
     gc();
     const memAfter = process.memoryUsage();
-    assert.isAtMost(memAfter.external - memBefore.external, 1024);
+    assert.isAtMost(memAfter.external - memBefore.external, 1024 * 1024 * 5, 'possible memory leak detected');
   }
 }