diff --git a/Dockerfile b/Dockerfile
index 5c4d5ff..2dafb50 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -2,4 +2,6 @@ FROM node:8.15.0
 COPY /src /opt/executor
 WORKDIR /opt/executor
 RUN if [ ! -d "sdk-node" ]; then git clone --depth 1 https://github.com/ProcessMaker/sdk-node.git; fi
+RUN cd /opt/executor/sdk-node; npm install
+RUN cd /opt/executor/sdk-node; npm run-script build
 RUN npm install
diff --git a/README.md b/README.md
index d06a2b3..49950f8 100644
--- a/README.md
+++ b/README.md
@@ -5,19 +5,12 @@ A docker image that allows executing native ES6 in [ProcessMaker 4](https://gith
 ### Building
 
 To build from the master branch of the SDK at https://github.com/ProcessMaker/sdk-node.
-This will build the image as processmaker/docker-executor-node:dev-master
+This will build the image as processmaker4/executor-node:latest
 
-`./build.sh`
+`docker build -t processmaker4/executor-node:latest .`
 
-You can specify a branch from the SDK repo with the BRANCH env var.
-This will use that branch and build the as processmaker/docker-executor-node:feature-123
-
-`BRANCH=feature/123 ./build.sh`
-
-You can specify a tag.
-This will build the image from the master SDK branch as processmaker/docker-executor-node:test-123
-
-`TAG=test-123 ./build.sh`
+If you want to use a different branch or local build of the sdk, you can copy it to `./src/sdk-node`
+and it will be used instead of cloning from github.
 
 ### Scripts
 The javascript must return either an object, a promise that resolves to an object, or nothing.
diff --git a/build.sh b/build.sh
deleted file mode 100755
index f516778..0000000
--- a/build.sh
+++ /dev/null
@@ -1,16 +0,0 @@
-set -e
-set -x
-
-BRANCH=${BRANCH:=master}
-TAG=${TAG:=dev-${BRANCH//[\/]/-}}
-
-pushd src
-    if [[ ! -d "sdk-node" ]]; then
-        git clone --branch $BRANCH --depth 1 https://github.com/ProcessMaker/sdk-node.git
-    fi
-    rm -rf node_modules
-    rm -rf package-lock.json
-popd
-
-docker build -t processmaker4/executor-node:${TAG} .
-rm -rf src/sdk-node
diff --git a/src/bootstrap.js b/src/bootstrap.js
index f688556..c700938 100644
--- a/src/bootstrap.js
+++ b/src/bootstrap.js
@@ -42,7 +42,6 @@ Promise.all([getConfig, getData]).then(function(values) {
             // Nothing to output
             return writeScriptOutput('');
         } else if (typeof result === 'object') {
-            result = Object.assign({}, data, result)
             return writeScriptOutput(JSON.stringify(result));
         } else {
             console.log(
@@ -51,5 +50,7 @@ Promise.all([getConfig, getData]).then(function(values) {
                 "Got a " + typeof result)
             return
         }
+    }).catch((error) => {
+        console.error(error);
     })
 })
diff --git a/src/package.json b/src/package.json
index fd1538a..8aefd91 100644
--- a/src/package.json
+++ b/src/package.json
@@ -4,7 +4,7 @@
   "description": "",
   "main": "bootstrap.js",
   "dependencies": {
-    "process_maker_api": "file:./sdk-node"
+    "process_maker_api": "./sdk-node"
   },
   "devDependencies": {},
   "scripts": {