Ensure we use local node-pre-gyp in Node install hook
diff --git a/package.json b/package.json
index df976fd..b3888af 100644
--- a/package.json
+++ b/package.json
@@ -23,7 +23,7 @@
     "test": "./node_modules/.bin/mocha src/node/test && npm run-script lint",
     "gen_docs": "./node_modules/.bin/jsdoc -c src/node/jsdoc_conf.json",
     "coverage": "./node_modules/.bin/istanbul cover ./node_modules/.bin/_mocha src/node/test",
-    "install": "node-pre-gyp install --fallback-to-build"
+    "install": "./node_modules/.bin/node-pre-gyp install --fallback-to-build"
   },
   "bundledDependencies": ["node-pre-gyp"],
   "dependencies": {