diff --git a/lib/build.js b/lib/build.js
index 359be2b..0d906e9 100644
--- a/lib/build.js
+++ b/lib/build.js
@@ -106,11 +106,14 @@ function ensureJavaScriptEngineDownloaded(opts) {
 function getDependencies(opts) {
 	return Promise.all([
 			glob('!(node_modules)/', opts),
-			shellpromise('npm ls --production --parseable --loglevel=silent', opts),
+			shellpromise('npm ls --production --parseable', opts),
 			glob('*', { dot: true, cwd: opts.cwd, nodir: true }),
 			exists(opts.cwd+'/node_modules/.bin')
 		])
 		.then(function(results) {
+			// Strip out anything that isn't a path e.g. loglevel info output
+			results[1] = results[1].replace(/^[^\/].+/m, '');
+
 			var nodeModules = results[1].trim().split("\n");
 			var deps = results[0]
 				.map(function(folder) { return './' + folder; });