diff --git a/tasks/override-chrome-launcher.js b/tasks/override-chrome-launcher.js
index 6cc10f397..6a499d593 100644
--- a/tasks/override-chrome-launcher.js
+++ b/tasks/override-chrome-launcher.js
@@ -8,11 +8,12 @@ module.exports = function(grunt) {
 		if (os === 'Darwin') {
 			var exec = require('child_process').exec;
 			var cb = this.async();
-			exec('npm install git://github.com/morethanreal/karma-chrome-launcher', null, function(err, stdout, stderr) {
-				console.log(stdout);
-				console.log(stderr);
-				cb();
-			});
+			exec('npm install --tmp ../.tmp git://github.com/morethanreal/karma-chrome-launcher',
+					null, function(err, stdout, stderr) {
+						console.log(stdout);
+						console.log(stderr);
+						cb();
+					});
 		}
 	});
 };
\ No newline at end of file