1 files changed, 6 insertions, 2 deletions
diff --git a/lib/install/inflate-shrinkwrap.js b/lib/install/inflate-shrinkwrap.js
index 02f7eaedd..8cb75626b 100644
--- a/lib/install/inflate-shrinkwrap.js
+++ b/lib/install/inflate-shrinkwrap.js
@@ -2,10 +2,10 @@
 
 const BB = require('bluebird')
 
-const addBundled = BB.promisify(require('../fetch-package-metadata.js').addBundled)
+let addBundled
 const childPath = require('../utils/child-path.js')
 const createChild = require('./node.js').create
-const fetchPackageMetadata = BB.promisify(require('../fetch-package-metadata.js'))
+let fetchPackageMetadata
 const inflateBundled = require('./inflate-bundled.js')
 const moduleName = require('../utils/module-name.js')
 const normalizePackageData = require('normalize-package-data')
@@ -15,6 +15,10 @@ const validate = require('aproba')
 const path = require('path')
 
 module.exports = function (tree, swdeps, opts, finishInflating) {
+  if (!fetchPackageMetadata) {
+    fetchPackageMetadata = BB.promisify(require('../fetch-package-metadata.js'))
+    addBundled = BB.promisify(fetchPackageMetadata.addBundled)
+  }
   if (!npm.config.get('shrinkwrap') || !npm.config.get('package-lock')) {
     return finishInflating()
   }