fix issue NightlyCommit#25

Author: Oliver Fabel

package.json

@@ -10,7 +10,7 @@
     "test:integration": "npm run build && ts-node node_modules/tape/bin/tape 'test/integration/**/test.ts' | tap-bail | tap-spec",
     "cover": "rimraf .nyc_output coverage && nyc npm run test:unit",
     "coverage": "nyc report --reporter=text-lcov | coveralls",
-    "prepack": "npm run build"
+    "prepare": "npm run build"
   },
   "keywords": [
     "twig",