From cdf2261290ea763dbe94b1e0ce8a2dbe8556ac0e Mon Sep 17 00:00:00 2001
From: liuye <1601695692@qq.com>
Date: Mon, 6 Aug 2018 15:57:21 +0800
Subject: [PATCH] update readme

---
 how-to-deploy-a-contract.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/how-to-deploy-a-contract.md b/how-to-deploy-a-contract.md
index a891bfb92..7cebd0008 100644
--- a/how-to-deploy-a-contract.md
+++ b/how-to-deploy-a-contract.md
@@ -30,7 +30,7 @@ the examples directory structure
 ## Custom Docker image build
 
 ```
-docker build -t contractfuzzer/deployer .
+docker build -f deploy.Dockerfile -t contractfuzzer/deployer .
 docker run -it -e "ContractFuzzer=/contractFuzzer/deployer"  contractfuzzer/deployer:latest
 ```
 ## Deploy Ethereum Contracts