diff --git a/lib/util.js b/lib/util.js
index 246ad56c..0e3aa0b7 100644
--- a/lib/util.js
+++ b/lib/util.js
@@ -8,9 +8,9 @@ module.exports = {
       return baseUrl + value;
     });
   },
-  canRsync: function() {
+  canRsync: function(options) {
     // Enable process.platform to be mocked in options for testing.
-    var platform = options.platform || process.platform;
+    var platform = options && options.platform ? options.platform : process.platform;
     return platform !== "win32";
   }
 };
diff --git a/tasks/composer.js b/tasks/composer.js
index 27a232ee..d9b7e8ae 100644
--- a/tasks/composer.js
+++ b/tasks/composer.js
@@ -11,7 +11,15 @@ module.exports = function(grunt) {
     grunt.loadNpmTasks('grunt-composer');
     var Help = require('../lib/help')(grunt);
 
-    grunt.config(['composer', 'install'], {});
+    grunt.config(['composer', 'install'], {
+      options: {
+        flags: [
+          'no-interaction',
+          'no-progress',
+          'prefer-dist'
+        ],
+      }
+    });
 
     Help.add({
       task: 'composer',
diff --git a/tasks/make.js b/tasks/make.js
index 4f501b96..bed2ac7e 100644
--- a/tasks/make.js
+++ b/tasks/make.js
@@ -57,7 +57,7 @@ module.exports = function(grunt) {
         'clean:temp',
         'drush:make',
         'clean:default',
-        gdt.canRsync ? 'rsync:tempbuild' : 'copy:tempbuild',
+        gdt.canRsync() ? 'rsync:tempbuild' : 'copy:tempbuild',
         'clean:temp'
       ]
     }