diff --git a/lib/test.js b/lib/test.js
index 651b3151..62d90b62 100644
--- a/lib/test.js
+++ b/lib/test.js
@@ -39,8 +39,7 @@ Test.prototype.deployAll = function(contractsConfig, cb) {
           contractsConfig: config.contractsConfig,
           logger: logger
         });
-        contractsManager.build();
-        callback(null, contractsManager);
+        contractsManager.build(callback);
       },
       function deployContracts(contractsManager, callback) {
         var deploy = new Deploy({