diff --git a/build.sh b/build.sh
index 05fb14f57221ec411a296a92e8194311ca33dcf4..0d8fbdb3f89d891d747fae9c70d3d3be688e1b0a 100755
--- a/build.sh
+++ b/build.sh
@@ -1,14 +1,12 @@
 #!/bin/bash
 
-DIR="/home/contract_docker_go/target/release/"
-
-if [ ! -d $DIR ]; then
-  mkdir -p $DIR
+contractName=$1
+if  [[ ! -n $contractName ]] ;then
+    echo "contractName is empty. use as: ./build.sh contractName"
+    exit 1
 fi
 
-echo "please input zip file name (no suffix): "
-read zip_file
-go build -ldflags="-s -w" -o $zip_file
+go build -ldflags="-s -w" -o $contractName
 
-7z a $zip_file $zip_file
-mv $zip_file.7z $DIR
\ No newline at end of file
+7z a $contractName $contractName
+rm -f $contractName
\ No newline at end of file