diff --git a/packages/dai-plugin-mcd/package.json b/packages/dai-plugin-mcd/package.json
index f8118ed62..e89418f0e 100644
--- a/packages/dai-plugin-mcd/package.json
+++ b/packages/dai-plugin-mcd/package.json
@@ -1,21 +1,16 @@
 {
   "name": "@makerdao/dai-plugin-mcd",
   "description": "Plugin to add Multi-Collateral Dai support to dai.js",
-  "version": "1.4.4",
+  "version": "1.4.5",
   "license": "MIT",
-  "files": [
-    "dist/**/*",
-    "umd/*",
-    "contracts/**/*"
-  ],
-  "main": "dist/index.js",
+  "main": "dist/src/index.js",
   "browser": "umd/index.js",
   "unpkg": "umd/index.js",
   "jsdelivr": "umd/index.js",
   "scripts": {
     "build": "yarn clean && yarn build:cjs && yarn build:umd",
     "build:umd": "webpack --config ../../webpack.config.js",
-    "build:cjs": "../../scripts/build.sh",
+    "build:cjs": "./scripts/build.sh",
     "clean": "rm -rf ./dist ./umd",
     "prepublishOnly": "yarn build",
     "testchain": "../../scripts/run-testchain.sh",
diff --git a/packages/dai-plugin-mcd/scripts/build.sh b/packages/dai-plugin-mcd/scripts/build.sh
new file mode 100644
index 000000000..c0917be8d
--- /dev/null
+++ b/packages/dai-plugin-mcd/scripts/build.sh
@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+
+set -e
+
+if [ "$1" = "dirty" ]; then
+  echo "Dirty mode: not removing previous build files."
+else
+  rm -rf dist
+fi
+
+babel contracts --out-dir ./dist/contracts
+babel src --out-dir ./dist/src
+
+copyfiles \
+  contracts/abis/* \
+  contracts/abiMap.json \
+  contracts/addresses/* \
+  dist