diff --git a/.extfiles b/.extfiles
index b2a8ac92..827c625b 100644
--- a/.extfiles
+++ b/.extfiles
@@ -4,4 +4,5 @@ icon.png
 redhat-icon.woff2
 README.md
 dist/**
-www/**
\ No newline at end of file
+www/**
+!**/yarn.lock
\ No newline at end of file
diff --git a/Containerfile b/Containerfile
index 9cf3151b..0b4c8c51 100644
--- a/Containerfile
+++ b/Containerfile
@@ -22,10 +22,4 @@ LABEL org.opencontainers.image.title="Red Hat Account" \
   org.opencontainers.image.vendor="Red Hat" \
   io.podman-desktop.api.version=">= 1.9.0"
 
-COPY package.json /extension/
-COPY LICENSE /extension/
-COPY icon.png /extension/
-COPY redhat-icon.woff2 /extension/
-COPY README.md /extension/
-COPY dist /extension/dist
-COPY www /extension/www
+COPY builtin/redhat-authentication.cdix /extension
diff --git a/scripts/build.js b/scripts/build.js
index e9c8aa13..2d45d4ab 100755
--- a/scripts/build.js
+++ b/scripts/build.js
@@ -33,6 +33,7 @@ const extFiles = path.resolve(__dirname, '../.extfiles');
 const fileStream = fs.createReadStream(extFiles, { encoding: 'utf8' });
 
 const includedFiles = [];
+const excludedFiles = [];
 
 // remove the .cdix file before zipping
 if (fs.existsSync(destFile)) {
@@ -53,7 +54,7 @@ cproc.exec('yarn add object-hash@2.2.0 --cwd .', { cwd: './dist' }, (error, stdo
 
   byline(fileStream)
     .on('data', line => {
-      includedFiles.push(line);
+      line.startsWith('!') ? excludedFiles.push(line.substring(1)) : includedFiles.push(line);
     })
     .on('error', () => {
       throw new Error('Error reading .extfiles');
@@ -62,7 +63,7 @@ cproc.exec('yarn add object-hash@2.2.0 --cwd .', { cwd: './dist' }, (error, stdo
       includedFiles.push(zipDirectory); // add destination dir
       mkdirp.sync(zipDirectory);
       console.log(`Copying files to ${zipDirectory}`);
-      cp(includedFiles, error => {
+      cp(includedFiles, { exclude: excludedFiles }, error => {
         if (error) {
           throw new Error('Error copying files', error);
         }