diff --git a/build.sh b/build.sh
new file mode 100755
index 0000000..7fa5768
--- /dev/null
+++ b/build.sh
@@ -0,0 +1 @@
+mblf wordFactList.mblf out.bf && sed '0,/\./s//ÿ/' out.bf > quine.bf
diff --git a/package.json b/package.json
index 481bdf8..aa4cdac 100644
--- a/package.json
+++ b/package.json
@@ -7,7 +7,7 @@
     "test": "test"
   },
   "scripts": {
-    "build": "mblf wordFactList.mblf out.bf",
+    "build": "./build.sh",
     "test": "node test/wordFactList.js"
   },
   "repository": {
diff --git a/test/wordFactList.js b/test/wordFactList.js
index c97f28f..1a98a22 100644
--- a/test/wordFactList.js
+++ b/test/wordFactList.js
@@ -2,6 +2,6 @@
 const assert = require('assert')
 const fs = require('fs')
 
-fs.readFile("out.bf", (_, output) => {
-  assert.equal(output, "<+[-<+]-.<<<<<<<[.>]")
+fs.readFile("quine.bf", (_, output) => {
+  assert.equal(output, "<+[-<+]-ÿ<<<<<<<[.>]")
 })